Season 1 • Episode 1

While on Air Force One, a Navy commanding officer dies. Agents from the Navy NCIS decide to take the investigation into their own hands and also force a Secret Service Agent to help. Now the NCIS team has to figure out if the Navy officer's death was of natural causes or not.

Season 1 • Episode 2

During a training exercise, a Marine's parachute fails to open and he crashes into a parked car. The NCIS team head to the scene and have to determine if the Marine's death was accidental or a murder.

Season 1 • Episode 3

When a Navy commander's body washes up on shore along with the bodies of two drug runners, Gibbs refuses to believe that the sailor who was killed was dirty.

Season 1 • Episode 4

The NCIS team investigate when a seaman's body is found at the bottom of the sea in his dress whites, with a ceremonial sword. They discover that he was addicted to an MMORPG. Now, the team must figure out how involved he was in the game and how far he would go to get revenge on his arch enemy, another sailor.

Season 1 • Episode 5

A Navy Lieutenant who was reported missing nearly ten years ago has been found by a deer hunter. When the NCIS team arrive at the scene to investigate, they see that his remains have been mummified.

Season 1 • Episode 6

An NCIS agent who used to work under Gibbs asks for the team's help investigating a case where sailors on an aircraft carrier are dying of a drug overdose, but have no history of any kind of drug abuse.

Season 1 • Episode 7

A decomposed body is discovered in a tub of acid at a Naval base and Ducky and Abby learn that the victim was a submariner. However, there have been no reports of a sub crewmember missing.

Season 1 • Episode 8

The NCIS team head to Cuba to investigate a Navy translator's connection to smuggling at a detention center after he suddenly dies at the wheel of his car when returning to the U.S. from Guantanamo Bay.

Season 1 • Episode 9

After a Marine widow receives a call from her dead husband, the NCIS team take on the case and have to exhume the body to deduce whether the call was a prank or not.

Season 1 • Episode 10

After being buried alive, a woman comes out of the grave with amnesia and the only thing she remembers is that there is a bomb aboard a Navy ship. While trying to help Jane Doe recover her identity, the team find out that not everything is what it first seemed.

Season 1 • Episode 11

When a Navy commander, who was a technical advisor to a civilian contractor for a Navy weapon, is found dead on the beach, the NCIS team investigate the murder using satellite technology.

Season 1 • Episode 12

The NCIS team are called in when a severed leg bearing a Marine tattoo is found in a trash bin, leading them to a small town where a murder scheme is afoot.

Season 1 • Episode 13

The team investigate when a Marine recruitment officer is found shot to death by a sniper with a grudge, who leaves a white feather behind.

Season 1 • Episode 14

A Navy dentist stops near a parked car to help a stranded motorist who pulls out a gun. The team investigate a murder with the help from a local sheriff, Charley, when they find out about the similar murder of the Navy civilian employee.

Season 1 • Episode 15

Gibbs risks his career when his former commanding officer is accused of stealing funds.

Season 1 • Episode 16

A terrorist holds Ducky, Gerald, and Kate hostage while NCIS investigate how exactly the terror organization member got a job at a Navy base.

Season 1 • Episode 17

When the body of a sailor is found after a party in an illegal night club, the team investigate a number of possible leads - including blackmail and accidental death.

Season 1 • Episode 18

The team are looking for an ex-SEAL who escaped from prison in search of revenge. He is determined to find the real murderer of his wife.

Season 1 • Episode 19

An NCIS agent has been murdered while investigating a case and the team's job is to find out what happened.

Season 1 • Episode 20

A Marine goes missing after a date with a reporter. During the investigation, the team discover that three former members of his unit are dead and suspect the unit commander to be a serial killer.

Season 1 • Episode 21

When a body of a murdered Marine is found in the forest, the investigation leads to the local militia and a weapon deal gone wrong.

Season 1 • Episode 22

Gibbs' team investigate the death of a SEAL during a training exercise, and come to suspect that it wasn't an accident, but a murder.

Season 1 • Episode 23

The terrorist from Bête Noire returns with a plan to attack the President. Gibbs and his team follow the clues to reveal his identity and find Kate who is kidnapped.

Season 2 • Episode 1

The wife and nine-year-old blind daughter of a Navy captain are kidnapped and the captain is a hostage in his own office, communicating with the kidnapper, who watches his every step via computer camera.

Season 2 • Episode 2

A mummified remains of a woman are found in an abandoned compound. The team discover that the woman was missing for several months, was wearing a wedding dress when she died, and might have been a victim of a serial killer.

Season 2 • Episode 3

The NCIS team are called in to investigate when a perfectly functioning Marine helicopter is found in the middle of a crop circle.

Season 2 • Episode 4

A body of a woman in a Navy uniform is found by two sailors. Ducky links the murder to an unsolved case from ten years ago, and the team searches for a serial killer who left a note promising to return.

Season 2 • Episode 5

NCIS discover that an area in a Marine's bombing range is where mafia has been dumping bodies for a while. One of the victims is an undercover FBI agent. The team set out to find a mole.

Season 2 • Episode 6

The team must protect an Iraq veteran due to the threats made by terrorists. While trying to convince FBI Agent Lina Reyes to help them, the team are convinced that they have discovered the bomber.

Season 2 • Episode 7

Ernie Yost, an elder Marine veteran confesses to murdering his best friend almost 60 years ago in a war battle. The NCIS's job is to solve the secrets and save Ernie from prison.

Season 2 • Episode 8

A strange case for Gibbs and his team opens when a Navy Commander dies after successful surgery. While researching the commander's past, the team find out that he collected a lot of enemies lately.

Season 2 • Episode 9

Laura Rowen, a Marine's wife, shoots an intruder in self defense when he is about to rape her. The team take on the case and find out that the wife is leading a double life while her husband is serving overseas.

Season 2 • Episode 10

Tony disappears while doing an undercover operation as an escaped prisoner who is forced to stick to a convict that owns a key to an expensive ancient Iraqi sculpture. The GPS locator that Abby planted on Tony stops working and the team are forced to find Tony before he gets murdered by the thief.

Season 2 • Episode 11

A dead body of a two-year-missing Navy officer appears on the bottom of a lake. The team investigate the case with a help of a private detective.

Season 2 • Episode 12

The team take on another strange case when a telemarketer reports a possible murder of a Petty Officer who appeared to be dying over the phone.

Season 2 • Episode 13

A "meat puzzle" starts when Ducky identifies the pieces of three bodies that were stuffed inside a barrel a few months ago. They turn out to be bodies of a judge, prosecutor, and jury foreman that worked with Ducky on a rape case ten years ago.

Season 2 • Episode 14

Erin Kendall claims to have seen a murder of a sailor in an apartment across from hers. Gibbs assigns the case to McGee who believes that he can resolve it himself. However, due to the lack of physical evidence, McGee turns to the team to help him.

Season 2 • Episode 15

The team take on a case of a dead Marine who recorded his death while falling off a cliff. The prime suspects are his wife and his best friend with whom he had a picnic in the camp. Gibbs finds out they had an affair behind the dead man's back.

Season 2 • Episode 16

NCIS start an investigation after Petty Officer Manda King is found dead in a bartender's bed. The suspect is the owner of a competing club where Manda's sister sings.

Season 2 • Episode 17

When a sailor officer receives a pair of blue eyeballs, the NCIS team start investigating the case. Gibbs traces an ex-Navy agent that does illegal work.

Season 2 • Episode 18

A Petty Officer that just returned to her job is found dead in the backstage of a bikini contest. The team find out that she possibly had a stalker behind her back.

Season 2 • Episode 19

The team investigate a suicide case, believing that the main reason of her death is a nervous breakdown, but Ducky believes that she was actually murdered. FBI Special Agent Fornell helps them in the investigation. The team discover that the dead woman was involved in a love triangle and that this may have contributed to her death.

Season 2 • Episode 20

After a Marine is murdered in a school campus the team discover a possible suspect for his murder, but they soon find the suspect murdered. Tim and Abby discover a trace to a "Red Cell" in the e-mails and the team believe that maybe the Marine was involved in a serious game.

Season 2 • Episode 21

A young Marine is killed in Iraq, but he was investigated by police for a murder on a young girl in his hometown. While going through his personal belongings, they find the body of that girl. The local police believe that the corpsman murdered the girl, but Gibbs believes that he is innocent and he will try to prove it with a help of Faith Coleman.

Season 2 • Episode 22

When Tony opens a mysterious letter thinking it's for him, a small puff of white powder comes out and releases a possible deadly virus. Soon Kate and Tony are isolated in a bio-hazard isolation room for precaution. McGee and Gibbs work to discover who sent the envelope and how to cure their friends before it's too late for them.

Season 2 • Episode 23

A group of serial terrorists seek revenge and send Ari on an assignment to kill Gibbs. The NCIS team go on a hunt after him, but when they discover that Ari has a bigger plan, it is already too late.

Season 3 • Episode 1

After the terrorist's attack, the NCIS team are shocked and are trying to cope with Kate's sudden death, each in their own way. Now, their mission is to collect all the possible info on Ari and find a way to stop him before he does any more damage.

Season 3 • Episode 2

Still stressed over Kate's death, Gibbs is even more hurt when Ari kidnaps Ducky and decides to play with his mind. Gibbs sends Tony to follow Ziva, and after Jenny and Gibbs are almost shot to death, he is even more determined to finish once and for all with Ari, and Ziva's strange connection to Ari will be just the help that he needs.

Season 3 • Episode 3

Gibbs is ordered to talk to a convict that is about to be executed, in order to discover information about the place where he hid his victims, but when the plan doesn't work, the team must solve the case in their own way.

Season 3 • Episode 4

When a corpse of a man is found inside a tomb that comes from the Civil War, the team discover that the victim, a Sergeant, was buried alive. During the investigation, Abby tracks down the last phone call of the victim.

Season 3 • Episode 5

When an officer is shot to death on the freeway, the NCIS team take on the investigation. The first lead, a fact that the victim was leading a double life, take them to a possible solution of the crime, but the tables are turned when the victim's dying message is discovered and it leads them to a totally different clue.

Season 3 • Episode 6

The NCIS team take up a strange case - a Marine's wife was murdered live on the Internet. The investigation reveals that two housewives were running a live Internet sex site and now they are both missing. While looking for them, the team will try to track down the webmaster and solve the alleged murder case.

Season 3 • Episode 7

When a six-year-old boy informs the NCIS team that his father was kidnapped, the team discover that the missing father is actually a Lt. Commander working on a secret project named Honor, and that he is the only one who has the code that can open the project.

Season 3 • Episode 8

When bodies of two hired assassins are delivered to the NCIS team, Ziva and Tony go undercover assuming the victim's identities in order to find the person who hired the assassins for their mission. Gibbs discovers that his team are not the only ones working on the case.

Season 3 • Episode 9

Tony is accused of murdering a woman whose body was found at Quantico and the team must prove his innocence.

Season 3 • Episode 10

While on duty, McGee kills a man who is later discovered to be an undercover police officer. When Jen decides to approve the investigation on McGee, the NCIS team are forced to prove that McGee is not guilty, pushing Gibbs' relationship with Jen to the limit.

Season 3 • Episode 11

A supermodel dies while filming a reality show on a Marine base, and the NCIS team must discover who is the model's murderer. They discover a love triangle between the model and three other men, all suspects.

Season 3 • Episode 12

While looking for smuggled weapons at a shipyard, Tony and Ziva disappear and it's up to NCIS to find them. Abby tries to find them by tracking down their GPS chips, but they seem to be out of reach.

Season 3 • Episode 13

When a Lt. Commander in charge of a shipment of fuel rods for nuclear power stations disappears, the NCIS team are called in. The team must solve the case in time, before the person who kidnapped the Commander finds out the secret location of the fuel rods or harms the Commander.

Season 3 • Episode 14

The NCIS team investigate the murder of two Marine wives, and must find the murderers before they attack their next target, another woman.

Season 3 • Episode 15

While discovering an illegal automotive chop shop, the NCIS team stumble upon a severed head of a Marine, hidden in one of the cars from the shop. When they find possible suspects, the team will have to find the rest of the body and find the murderer.

Season 3 • Episode 16

When an ambulance explodes while carrying the remains of a Marine's body that was killed in a car crash, the NCIS team are called in to investigate what actually happened. The investigation leads them to some sudden discoveries - the DNA of the victim found in the ambulance doesn't match the Marine's DNA, the ambulance was set up to explode, and the family of the dead Marine is hiding a very important secret.

Season 3 • Episode 17

When Marine dog tags are found in a national forest by a group of teens, the NCIS team are called in to investigate. While searching for the campsite of the Marine, the team find out that there was another person, possibly a woman, with him. The investigation takes them to an even more higher discovery - there could be a serial killer killing women in the national forest.

Season 3 • Episode 18

The NCIS team must stop a teenage student from detonating a bomb attached to his body, while he's taking the other students hostage at a Quantico base high school. Gibbs tries to stop him when he enters the classroom, only to realize that there may be someone else controlling the teenage student from the outside.

Season 3 • Episode 19

Gibbs and the team are called in when a couple of kids stumble upon the body of a missing Marine in a frozen lake. As the NCIS team search the frozen lake bed for clues, they come across three more bullet-ridden bodies.

Season 3 • Episode 20

When a Pentagon cryptographer is found dead, the NCIS team have to discover whether she was or wasn't a Pentagon mole, and if she committed suicide. As the investigation continues, the team discover that the cryptographer wasn't alone when she died.

Season 3 • Episode 21

While working on a regular murder case with the rest of the NCIS team, Abby is almost killed by evidence from the case. Soon it becomes clear that the murder was staged, and that someone wants Abby dead. The team discover some enemies from Abby's past, and they must find out who is the person, before they kill Abby.

Season 3 • Episode 22

The NCIS team must protect Ziva when a suspect dies in custody, and her tactic might be the reason why the person died. Things become much more dangerous when the suspect's brother kidnapps Jenny, and demands the release of his brother in exchange for Jenny, but he has no idea that his brother is dead.

Season 3 • Episode 23

While working on an assignment, Gibbs is seriously injured in an explosion, and taken to a hospital, where he recalls his painful past, which he has always hidden from others. The rest of the team must proceed with the investigation and put their feelings towards Gibbs' injury aside.

Season 3 • Episode 24

The NCIS team must work on an assignment against a terrorist group without Gibbs, who is still recovering from the explosion. Gibbs has to fight with memory loss, while he's visited by his mentor and his former boss. Gibbs' help is needed, especially when the team discover that he is the only person who has information about the terrorists' plans.

Season 4 • Episode 1

When Ziva is framed for a political assassination, she must avoid the FBI and deal with the consequences without Gibbs' help, who is now enjoying his retirement.

Season 4 • Episode 2

Gibbs is forced to come back out of his retirement to help Fornell, who is being threatened by a convict that escaped from prison. Gibbs and the NCIS team re-open the convict's old robbery case.

Season 4 • Episode 3

An abandoned car, registered to a missing Navy Lieutenant, is found with blood stains inside. The NCIS team learn that the missing Lieutenant was profiling men, trying to find a perfect man for herself.

Season 4 • Episode 4

After police pull over a driver and arrest him for a concealed weapon, a car crashes into their patrol car with a dead man behind the wheel. The arrested man turns out to be Russian and Homeland Security claim he was working for them.

Season 4 • Episode 5

When a missing Lance Corporal is found dead in a vacant house, the NCIS team discover that he was buried in the backyard and then exhumed. They learn about his identity and that he was to be deployed to Iraq, but he never showed up for duty.

Season 4 • Episode 6

It's Halloween and the NCIS team are busy investigating a ransom case. A Marine's daughter has been kidnapped after the Marine was attacked in his home. The investigation leads them to a fact that the couple has been separated.

Season 4 • Episode 7

When a Marine Colonel dies in an explosion at a military golf course, the NCIS team must investigate a suspected terrorist attack with the help from the Army Criminal Investigative Division.

Season 4 • Episode 8

When an honored Marine veteran is found dead in a hotel, the NCIS team must find out what happened to him. Soon they realize that the Marine didn't commit suicide and that he was a homeless man.

Season 4 • Episode 9

McGee breaks the rules, risking his NCIS job, to help his sister Sarah, who shows up disoriented and bloodied. While he works on figuring out what happened to his sister, the NCIS team are investigating a case of a Navy sailor, who is somehow connected to Sarah.

Season 4 • Episode 10

When a burnt and mummified body of a missing and wanted person is found in a furnace on a Marine base, NCIS must work with the FBI. The burnt man turns out to be a serial killer.

Season 4 • Episode 11

When a robotic vehicle named "Otto," a part of a high-level project of the Department of Defense, causes a death of a Navy Lieutenant, and later almost kills Abby, the NCIS team must find out who sabotaged the vehicle and murdered the Lieutenant.

Season 4 • Episode 12

When a high-level Marine intelligence officer is found murdered in a small motel room, the NCIS team must find the person who murdered her. After discovering that she was already dead for three days, and that the town authorities already "investigated" the crime, Gibbs is determined to solve the case.

Season 4 • Episode 13

When the NCIS team learn that a missing ten kilograms of highly toxic chemical weapons are now in the hands of Mamoun Sharif, a wanted terrorist, they will have to find a way to find the man and stop him before it's too late.

Season 4 • Episode 14

After catching an international arms dealer, the NCIS team learn that the Navy's highly classified weapons system will be sold to arms dealer La Grenouille. To stop the transaction, the team send Ducky undercover.

Season 4 • Episode 15

When a dead body of a sailor is found in an abandoned part of the town, all the evidence seem to point that the person died from a drug overdose, but when the team uncover more evidence, it turns out to be a murder.

Season 4 • Episode 16

When a Navy Lieutenant becomes the victim of radiation poisoning, the NCIS team must find the person who's behind the crime. The Lieutenant, who is working for the International Atomic Energy Agency, claims that only his two colleagues knew about his assignment, and whoever it was, the person tried to stop the Lieutenant's next investigation.

Season 4 • Episode 17

When an explosion at a military cemetery mausoleum reveals a crypt full of a mixture of body parts, the NCIS team must inform the families of the victims, hoping to find a connection and narrow down the suspects to find out who is behind the hideous crime.

Season 4 • Episode 18

When a supposedly frozen to death Marine turns out alive on Ducky's autopsy table, the NCIS team have to find out about the victim's movements in the last few days to uncover what happened to him and who left him for dead.

Season 4 • Episode 19

When a weekend call to the NCIS tip line from an unknown source about possible terrorist activity results in the death of two agents sent into a trap, the NCIS team will have to find out who were the people responsible with the help from Agent Paula Cassidy, who holds herself responsible for the tragedy.

Season 4 • Episode 20

McGee is under high pressure during the murder investigation of a Petty Officer based on the character for his latest book, with very little information to go on.

Season 4 • Episode 21

Director Shepard makes a huge mistake by meeting a man alone to inform her about La Grenouille, as their meeting turns into a murder of the informant. Now the NCIS team must gather all the existing info and try to finally hunt down their enemy.

Season 4 • Episode 22

When a blind photographer shoots the body of a Petty Officer on film, the NCIS team use his special insight to investigate the crime.

Season 4 • Episode 23

When Jenny has to attend an overseas conference, Gibbs is made acting director, but he prefers to ignore his duties and lead the investigation of the murder of a man, who was found dead in a taxi headed to the NCIS headquarters.

Season 4 • Episode 24

When Jenny returns from her European trip, the entire NCIS team will be forced to take a Homeland Security polygraph test, and the deepest secrets of each agent are about to be revealed. Plus, an unarmed Tony and Jeanne are held hostage by a ruthless drug dealer.

Season 5 • Episode 1

The NCIS team uncover a huge secret, as their mission to capture La Grenouille comes to an explosive and deadly conclusion.

Season 5 • Episode 2

During an autopsy, Ducky makes a startling discovery that turns a murder of a Petty Officer into a search for a missing infant.

Season 5 • Episode 3

Lt. Colonel Mann joins Gibbs in an investigation of the murder of a Marine Captain who had access to highly classified information. Things get very personal for Gibbs when one of the witnesses in the case turns out to be one of his ex-wives.

Season 5 • Episode 4

When Ducky realizes that one of his cadavers used for research is actually a victim of murder, the NCIS team identify him as a criminal genius who is capable of deleting the past.

Season 5 • Episode 5

The NCIS team are called in to stop a Naval officer from committing suicide by jumping off a rooftop, but when the suicide attempt turns into a murder, the NCIS team will have to find out who did it.

Season 5 • Episode 6

While investigating a mysterious death on a top-secret Naval research ship at sea, the NCIS team board the abandoned ship and find a deadly secret that may cost them their lives.

Season 5 • Episode 7

Gibbs finds himself emotionally challenged when he agrees to investigate a crime connected to a friend of his daughter, who passed away years ago, and the investigation leads to a shocking conclusion.

Season 5 • Episode 8

A murder investigation of a Navy Admiral takes a shocking turn when a woman, a political refugee, returns home to search for her husband.

Season 5 • Episode 9

The NCIS team have to babysit a nine-year-old son of a missing man, a survivalist who is somehow connected to a cold case murder. The investigation leads the team into the wilderness, where they discover a shocking truth about the man's past.

Season 5 • Episode 10

While trying to track down a delusional and violent Marine who thinks he's still in Iraq, the NCIS team learn that the man has been the subject of a secret experiment - and it comes with a high price to pay.

Season 5 • Episode 11

After a young Muslim Marine is murdered near his Mosque, Ducky refuses to perform an autopsy due to his religious beliefs. The NCIS team try to talk to the father of the deceased, and they send McGee to plant a bug in the Mosque, only to discover that the FBI already planted their own bug.

Season 5 • Episode 12

The NCIS team go on a stakeout in a warehouse to catch a suspected thief of a high-tech Naval radar, but they accidentally end up witnessing a murder.

Season 5 • Episode 13

When a dog owner is found murdered, the NCIS team must determine if his dog committed the murder or not, and Abby decides to fight for the dog's life by trusting her instinct about the dog's innocence.

Season 5 • Episode 14

The dead body of La Grenouille surfaces and the entire NCIS is put under investigation by the FBI, with Jenny as the prime suspect for his murder.

Season 5 • Episode 15

Two members of the NCIS team are sent to Baghdad to investigate a mortar attack that turned into a murder investigation.

Season 5 • Episode 16

While on an undercover mission, Ziva's life is put in grave danger when the serial killer she's been tracking becomes suspicious of her.

Season 5 • Episode 17

Palmer is put in grave danger when he becomes the target of an anonymous murderer, whom only he can recognize.

Season 5 • Episode 18

When a former NCIS agent is found dead, the entire team is put in danger as they hunt after the killer.

Season 5 • Episode 19

When one of their own is killed, the team must find the killer before they get to another member of the team, Gibbs. In an emotional investigation, the team tries to stay together, against the wishes of Assistant Director Vance.

Season 6 • Episode 1

When a Petty Officer is found murdered, Gibbs learns about the mysterious connection between the disbanding of his team and the case.

Season 6 • Episode 2

DiNozzo's investigation into a Navy Lieutenant's apparent suicide takes a surprising and deadly turn when it seems that it might have a connection to a larger, deadly scheme.

Season 6 • Episode 3

A distinguished senator asks Gibbs for help in solving the murder of a young female Naval officer.

Season 6 • Episode 4

When a murder investigation leads the team to Gibbs' hometown, secrets about his past are revealed.

Season 6 • Episode 5

Gibbs' hunt for the killer of a Marine puts him on a collision course with an old friend.

Season 6 • Episode 6

Gibbs and his team are searching for a cyber serial killer who takes videos of his victims. The team quickly finds out that the videos of the dead victims are false.

Season 6 • Episode 7

A Navy bank has been robbed and NCIS is responsible for the investigation. One of the new recruits assigned to the fraud unit, Special Agent Dwayne Wilson, joins the team to help.

Season 6 • Episode 8

A strange delivery in a box arrives at a Navy facility. The delivery driver and a Navy MP officer discover it is a sailor's corpse.

Season 6 • Episode 9

The team is forced to rely on information from questionable sources while trying to stop a criminal bent on stealing government secrets.

Season 6 • Episode 10

The team investigates the death of a Petty Officer and discovers he may have been leading a violent secret life.

Season 6 • Episode 11

During the week of Christmas, the NCIS team is forced to work overtime when they discover their prime suspect had been dead for 17 years.

Season 6 • Episode 12

The NCIS team must uncover the truth behind the murder of a jail guard which resulted in a prison riot and McGee being held captive by the inmates.

Season 6 • Episode 13

Secrets from Ducky's clandestine past come to the forefront after he's attacked at a crime scene.

Season 6 • Episode 14

The team discovers a link between a sergeant's murder and his possibly treasonous private life.

Season 6 • Episode 15

Demons of the past come back to haunt Gibbs when he finds a cryptic message waiting for him at a crime scene.

Season 6 • Episode 16

A murder prompts the reopening of one of Tony's old investigations, leading Gibbs and DiNozzo to reverse roles to solve the case.

Season 6 • Episode 17

When a fellow agent is murdered, the NCIS team head into the desert to locate a woman who might hold the answer to the mystery murder.

Season 6 • Episode 18

The death of a boxer leads Vance to borrow the NCIS team and start investigating his death, while Gibbs digs into Vance's past.

Season 6 • Episode 19

When a young boy finds a murder weapon, the team must trace ownership of the gun to find who used it last and who was murdered.

Season 6 • Episode 20

Gibbs and the team must work with the shady Trent Kort to put away one of NCIS's most wanted.

Season 6 • Episode 21

When a government scientist goes missing, Abby is recruited to carry on his work, but the team worries that she may meet the same fate as her predecessor.

Season 6 • Episode 22

The body of a Marine leads Gibbs and McGee to the NCIS OSP division in Los Angeles, where a murder investigation quickly climbs to a matter of national security.

Season 6 • Episode 23

With the appearance of Mossad agent Michael Rivkin, Tony is forced to question Ziva’s loyalty to NCIS.

Season 6 • Episode 24

After a security breach at the SecNav's residence leads to the death of an ICE agent, Gibbs and the team are forced to work with ICE and the FBI to find his killer.

Season 6 • Episode 25

Ziva's homecoming to Israel with Gibbs and the team is not a happy reunion with her father, the enigmatic and powerful head of Mossad. As tensions rise, Gibbs is forced to make a decision that sends shock waves through NCIS.

Season 7 • Episode 1

As the hunt for Ziva's replacement begins, Gibbs and his remaining team members must head back to work with the past still weighing heavily on their minds.

Season 7 • Episode 2

The team discovers the bizarre death of a Marine and his two friends may be linked to their past, but it's Gibbs who ends up taking a trip down memory lane.

Season 7 • Episode 3

The team must take a second look into the death of a Lieutenant after the blogger who accused them of a cover-up ends up dead.

Season 7 • Episode 4

When a Marine's body surfaces halfway around the world, the investigation forces Ziva to dig up a buried chapter of her life.

Season 7 • Episode 5

When a Marine known for his practical jokes is found dead on Halloween Eve, the NCIS team discovers that the victim's "good-natured" pranks may have inspired ghoulish retribution.

Season 7 • Episode 6

A murder investigation prompts Gibbs and the team to play family counselor to his former mentor, Mike Franks, in the hopes of preventing a bloody international conflict.

Season 7 • Episode 7

With the team's help, Vance faces his demons while uncovering a complex relationship with a killer that puts his whole family in danger.

Season 7 • Episode 8

The team literally finds themselves in the dark when the investigation into the death of a Lieutenant is connected to a city-wide blackout.

Season 7 • Episode 9

A dead Marine's day job at a government think tank leads Gibbs and the team into the life of a 12-year-old prodigy who may be the killer's next target.

Season 7 • Episode 10

The body of the son of a retired Colonel-turned-preacher is found and the team have their suspicions that he may be the victim of a hate crime.

Season 7 • Episode 11

When a Navy pilot is found dead under strange circumstances in a secluded area, the team finds themselves battling a no-nonsense attorney with a hidden agenda.

Season 7 • Episode 12

Gibbs is worried about Tony's ability to handle his job when Tony's father turns out to be linked to their newest investigation, an assassination attempt on a foreign prince.

Season 7 • Episode 13

While on the flight back from Paris, Tony and Ziva realize that their assignment to protect a government witness in an embezzlement case is in great danger when they learn that an assassin is located on the same flight.

Season 7 • Episode 14

The team finds themselves in a race against time when a terrorist group threatens to detonate a "dirty bomb" in the D.C. area.

Season 7 • Episode 15

When a Marine is found dead, Gibbs, Fornell, and the team hit the open road to bust an illegal trucking operation.

Season 7 • Episode 16

Secrets arise when Gibbs' former mother-in-law surfaces as a witness in a murder investigation.

Season 7 • Episode 17

Gibbs and the team investigate the shooting of a Marine and uncovers more to his life than anyone would have ever imagined.

Season 7 • Episode 18

The team discovers striking similarities between themselves and their CGIS (Coast Guard Investigative Services) counterparts when a Navy diver seeking sunken treasure is found dead.

Season 7 • Episode 19

The death of a Navy officer leads Gibbs and the team into the world of high-priced call girls, relying on D.C. Madam Holly Snow to help them catch a killer.

Season 7 • Episode 20

When an NCIS polygraph specialist's night job takes a dangerous turn, Gibbs, Fornell, and the team have to uncover the truth.

Season 7 • Episode 21

DiNozzo finds himself increasingly captivated by a woman he's never met while investigating the murder of her brother.

Season 7 • Episode 22

The team tries to track down a serial killer, while Abby heads south of the border to give a speech with McGee in tow.

Season 7 • Episode 23

When a colleague's murder sends shockwaves through the team, Gibbs uncovers a surprising link to the crime.

Season 7 • Episode 24

Gibbs heads to Mexico to face his demons and make a startling decision.

Season 8 • Episode 1

Gibbs must take desperate measures to protect his loved ones with Paloma Reynosa still on the loose.

Season 8 • Episode 2

The NCIS team has to find a young girl that was kidnapped, but their investigation turns into something else when her grandfather gets way too involved.

Season 8 • Episode 3

The team investigates a bomb tech's guarded personal life after she is attacked.

Season 8 • Episode 4

The team hopes to avoid an international incident when an American officer is killed on a British ship.

Season 8 • Episode 5

The team uncovers a sinister plan when a controversial DJ and a Naval officer are shot to death.

Season 8 • Episode 6

Abby becomes fixated on solving a murder, while DiNozzo's latest fling leads to an interesting Halloween.

Season 8 • Episode 7

The team is surprised when Gibbs asks Tony's father to join them in a murder investigation.

Season 8 • Episode 8

The team is assigned to protect Ziva's father, when his attendance at a NCIS conference leads to some unexpected surprises.

Season 8 • Episode 9

The team scrambles for answers after a shocking ambush reveals a new twist to their current investigation.

Season 8 • Episode 10

The NCIS team investigates the disappearance of a Petty Officer who is the sole witness in an upcoming murder trial.

Season 8 • Episode 11

Gibbs and the NCIS team partner with a Coast Guard Investigative Service (CGIS) Agent to solve the murder of a Marine gunned down on a dinner boat.

Season 8 • Episode 12

A Petty Officer's recruitment session at a college fair comes to a fatal end, prompting the NCIS team, accompanied by Dr. Mallard's predecessor, to solve his murder.

Season 8 • Episode 13

The NCIS team springs into action to find the assailant responsible for beating a Marine to death in his own backyard.

Season 8 • Episode 14

The NCIS team undergoes mandatory psych evaluations while investigating the death of a Naval Commander.

Season 8 • Episode 15

A botched assassination attempt in Belgravia forces NCIS to protect the Defense Minister's daughter, who is studying in the U.S. and smitten with McGee.

Season 8 • Episode 16

The dismembered fingertips and teeth of a murdered Marine are discovered in the stolen purse of a pickpocketer, launching NCIS on a mission to find a cold-blooded killer.

Season 8 • Episode 17

NCIS discovers that one of its former investigative assistants found brutally stabbed to death was selling details for how to rob a warehouse full of valuable possessions belonging to a woman convicted of fraud.

Season 8 • Episode 18

Gibbs questions Vance's motives when he is asked to interrogate a teenage boy accused of killing his retired Marine father.

Season 8 • Episode 19

NCIS connects a message in blood left by a murdered Navy commander to a manuscript that may contain classified military information.

Season 8 • Episode 20

To Gibbs' displeasure, Special Agent E.J. Barrett returns to lead the investigation of a seaman's death that may be connected to a series of port-related murders.

Season 8 • Episode 21

The NCIS team tracks a Navy Lieutenant's killer after a Pentagon security camera reveals a Petty Officer committing the crime.

Season 8 • Episode 22

After Tony's ex-partner, Danny Price, appears to be the Port-to-Port Killer's latest victim, he revisits his days as a detective in Baltimore, including his first encounter with Gibbs.

Season 8 • Episode 23

After new evidence reveals that the Port-to-Port Killer has infiltrated the agency, the NCIS team chases every lead in a race to track him down.

Season 8 • Episode 23

After new evidence reveals that the Port-to-Port Killer has infiltrated the agency, the NCIS team chases every lead in a race to track him down.

Season 8 • Episode 24

The lives of NCIS members are in jeopardy when they come face-to-face with the infamous Port-to-Port Killer.

Season 9 • Episode 1

Gibbs and the NCIS team have to find answers regarding Tony's months-long assignment when an NCIS agent is found dead.

Season 9 • Episode 2

The NCIS team uncovers a startling surprise after a young Marine shows up to his homecoming party with a fatal stab wound.

Season 9 • Episode 3

The line between McGee's personal and professional life is blurred when NCIS uncovers a connection between his grandmother and the murder of a Navy Lieutenant.

Season 9 • Episode 4

The NCIS team searches for the person and motive behind a contract killer targeting a Navy Lieutenant Commander.

Season 9 • Episode 5

When a coast guard officer is gunned down on a cargo vessel, the NCIS team searches for the killer, but finds a Lebanese family seeking refuge on American soil.

Season 9 • Episode 6

An NCIS case changes from accidental death to murder when evidence reveals that a Navy Lieutenant died of forced over-hydration.

Season 9 • Episode 7

The NCIS team searches for answers when the current husband of both Gibbs' and Fornell's ex-wife is suspiciously kidnapped.

Season 9 • Episode 8

The NCIS team uncovers a discrepancy with DNA remains when investigating the crash of a military plane that had been transporting caskets.

Season 9 • Episode 9

As the NCIS team continues its search for a missing Marine, Gibbs and Ziva travel to her last known whereabouts in Afghanistan.

Season 9 • Episode 10

After Anthony DiNozzo, Sr. is found in a car with a dead body in the trunk and no memory of the previous night, the NCIS team must figure out if he is capable of murder.

Season 9 • Episode 11

When a Navy Captain is killed in a hotel room, NCIS must track down and protect his very pregnant companion from unknown assailants.

Season 9 • Episode 12

An investigation into the murder of a Navy Commander leads the NCIS team to E.J. Barrett’s whereabouts.

Season 9 • Episode 13

When a Navy Lieutenant Commander is found dead in a building under construction, NCIS must search for a killer while dealing with interruptions from her distraught detective husband.

Season 9 • Episode 14

During a routine stop for his morning coffee, Gibbs finds himself staring down the barrel of a gun, forcing him to question choices he has made in the past and present.

Season 9 • Episode 15

When a Navy Captain is found dead with an unusual costume hidden under his uniform, NCIS uncovers a secret society of real-life super heroes and must track down the villain.

Season 9 • Episode 16

Gibbs clashes with Dr. Samantha Ryan over the truth behind a Navy reservist's possible suicide.

Season 9 • Episode 17

Top-secret clearance from a Naval research laboratory is jeopardized when the murder of a Chief Petty Officer is connected to an international arms dealer.

Season 9 • Episode 18

The Secretary of the Navy partners Gibbs with Dr. Samantha Ryan after top secret information is leaked by someone on the inside.

Season 9 • Episode 19

A case hits close to home when the lead suspect in the murder of a Petty Officer is Director Vance's brother-in-law.

Season 9 • Episode 20

Following the murder of a Marine, Tony and Ziva join Ziva’s longtime friend and mentor in Columbia in a search for a missing Marine Lieutenant and Navy Chaplain.

Season 9 • Episode 21

After a warehouse fire reveals missing Navy documents, posing a potential threat to national security, the NCIS team joins the Baltimore P.D. investigation, reuniting Tony with a boy from his past.

Season 9 • Episode 22

The NCIS investigation of a fire on a Navy vessel reveals evidence that elevates security at all U.S. Navy facilities worldwide.

Season 9 • Episode 23

The NCIS team analyzes what secrets could be in the hands of a terrorist targeting the Navy when a high-tech bug is found inside a probationary agent’s tooth.

Season 9 • Episode 24

Terrorism shakes the foundations of the Navy and NCIS to such an extent that Gibbs and the team face surprises that will devastate them.

Season 10 • Episode 1

With NCIS headquarters damaged by the bomb, Gibbs goes on the hunt for Harper Dearing to bring him down once and for all.

Season 10 • Episode 2

When the body of a missing NCIS facilities manager is found four months after disappearing on the day of the Navy Yard bombings, the NCIS team is assigned to investigate the strange case for one of their own.

Season 10 • Episode 3

While on medical leave, Ducky orders the exhumation of a Navy Commander's body from a case closed 12 years ago. As a result, Gibbs tasks Ducky with a slightly different role on the investigation.

Season 10 • Episode 4

When a helicopter crew is adrift at sea and later discovered on shore, the NCIS team must determine the cause of the crash and locate the missing pilot.

Season 10 • Episode 5

A Petty Officer is gunned down in a billionaire’s Ferrari and the investigation leads the NCIS team to discover a link to a man Gibbs was named after.

Season 10 • Episode 6

When a Navy Lieutenant who recently returned home from the Middle East is found dead from a brutal attack, the NCIS team questions the victim’s friend, Marine Captain Joe Wescott.

Season 10 • Episode 7

Gibbs continues to work with Captain Wescott while he retraces his steps in order to help the NCIS team track down a terrorist.

Season 10 • Episode 8

As the NCIS team investigates a teenage girl’s abduction, Ziva and Abby work closely with her young friend who witnessed the kidnapping. As the investigation unfolds, Gibbs seeks help from a past contact, Miranda Pennebaker, a well-connected woman with questionable morals.

Season 10 • Episode 9

Gibbs teams up with FBI Agent Fornell on a joint NCIS/FBI investigation after Fornell becomes the target of a shooting, but they face an unexpected twist in the case when their mutual ex-wife, Diane Sterling, gets involved.

Season 10 • Episode 10

It’s Christmas time and Tony DiNozzo can’t decide if he’ll be naughty or nice when his dad, Anthony DiNozzo, Sr., comes to town for a visit.

Season 10 • Episode 11

While the NCIS team investigates the link between a dead journalist and a Petty Officer, Ziva is taken aback by the sudden emotional visit by her father, who she hasn't seen in more than two years.

Season 10 • Episode 12

In the aftermath of an event that strikes close to home, the NCIS team unites to seek answers and demand justice in order to protect their most vulnerable colleagues.

Season 10 • Episode 13

The NCIS team investigates a Marine’s car accident and ignites some upsetting past memories for Abby as a young girl on the trail of her first “case”.

Season 10 • Episode 14

The NCIS team takes on a renowned hacker who could hold the key to tracking down the most-wanted cyber-terrorist in the world.

Season 10 • Episode 15

On leave from NCIS while still grieving the loss of his wife and his kids’ mother, Director Vance discovers unexpected personal information that causes him to question everything.

Season 10 • Episode 16

The NCIS team races to track down Ducky and Jimmy after the two disappear while transporting a body from a crime scene.

Season 10 • Episode 17

A media frenzy surrounding an unidentified criminal prompts Gibbs’ barber to question his son’s involvement and ask for Gibbs’ help in ruling out his son as a prime suspect.

Season 10 • Episode 18

A widowed Marine wife, whose husband was seemingly killed by a Taliban sniper, asks Gibbs for help to find out the truth.

Season 10 • Episode 19

The team investigates death of a Navy medical officer aboard a ship that went through a storm.

Season 10 • Episode 20

While the team takes a missing person case, Tony is disturbed by Ziva's way of coping with her father's death.

Season 10 • Episode 21

Ziva continues to pursue revenge against Eli's killer, Ilan Bodnar, and Vance continues to endorse her actions despite orders from Homeland Security to rein them in.

Season 10 • Episode 22

In retaliation for the murders of Eli David and Jackie Vance, the NCIS team feverishly searches for Bodnar despite orders from Homeland Security to relinquish the case.

Season 10 • Episode 23

The team examines whether a Petty Officer is suffering from paranoia or if his claims of being followed are tied to a matter of national security.

Season 10 • Episode 24

The international manhunt for Eli David's killer turns into a federal witch hunt against Gibbs and the team, which questions their unconventional methods and threatens their future at the agency.

Season 11 • Episode 1

An explosion at a D.C. event that results in a casualty connected to the agency changes Parsons’ perspective on Gibbs and the NCIS team.

Season 11 • Episode 2

Determined to locate Ziva, Tony chases leads in Israel in search of her current whereabouts. Meanwhile, Gibbs and the team continue the hunt for Parsa and his growing terrorist ring.

Season 11 • Episode 3

The NCIS team must rely on Twitter for a case involving a missing Navy Lieutenant.

Season 11 • Episode 4

Gibbs and McGee travel to Afghanistan when a murder case leads them to an Afghan women’s shelter that Mike Frank secretly supported for years.

Season 11 • Episode 5

DiNozzo returns to his Baltimore Police Department days when he sees a felony suspect from a 15-year-old case at the NCIS crime scene of a murdered Petty Officer.

Season 11 • Episode 6

The Coast Guard Investigative Service works with the NCIS team when an explosion occurs on an oil rig.

Season 11 • Episode 7

After Gibbs leaves mid-case to help his father reconnect with a former war pilot, Tony and McGee argue over who should run lead on the team’s investigation into the murder of a Marine Sergeant.

Season 11 • Episode 8

The team is forced to take another look at a hit-and-run murder case.

Season 11 • Episode 9

After discovering the Secretary of the Navy was bugged during a confidential briefing, NSA Analyst Eleanor Bishop, who predicted the security breach in exact detail two years ago, partners with the NCIS team on the case.

Season 11 • Episode 10

Complications arise when the NCIS team discovers a link between a murder victim and the current boyfriend of Gibbs and Agent Fornell’s ex-wife.

Season 11 • Episode 11

After a mysterious illness strikes children from military families, Gibbs and the team investigate the cause. Abby and Jimmy partner with the Naval Medical Research Center to determine the strain of illness, all in hopes of delivering a cure before the holidays.

Season 11 • Episode 12

When a stolen drone is linked to the elusive terrorist Parsa, the NCIS team partners with the Department of Defense, including Gibb’s former girlfriend Hollis Mann, to track down the device before it is used for a large scale attack.

Season 11 • Episode 13

In an effort to find the terrorist Parsa, Gibbs and the NCIS team track down one of his cohorts using evidence from the drone attack.

Season 11 • Episode 14

A port authority officer's murder reveals a possible location for Parsa, while Bishop reveals a past connection to the terrorist.

Season 11 • Episode 15

After uncovering faulty bulletproof vests in a truck filled with stolen U.S.M.C. merchandise, the NCIS team attempts to locate both the source and any vests that had been shipped to military personnel overseas.

Season 11 • Episode 16

Someone winds up dead when DiNozzo confronts a man impersonating a Navy officer.

Season 11 • Episode 17

After a bomb detonates in the dressing room at a military charity concert, the NCIS team must determine if the target was a washed-up 1980s rocker or if the bomb was part of a larger scheme.

Season 11 • Episode 18

When a former NCIS agent's body washes ashore in New Orleans, Gibbs reunites with NCIS Special Agent Dwayne Cassius Pride to determine if the murder was politically motivated or related to a well-known case.

Season 11 • Episode 19

Gibbs and Special Agent Pride chase leads in New Orleans after evidence points to a copycat of the infamous Privileged Killer. DiNozzo, McGee, and the FBI continue to track political connections to the case from D.C.

Season 11 • Episode 20

After returning to her job at the Department of Defense, McGee’s girlfriend Delilah finds a break in a controversial case, prompting her to turn to the NCIS team for help.

Season 11 • Episode 21

After a Navy officer is found dead on a rural road, the NCIS team must ascertain if his death was the result of a bar fight or because he knew too much about an attack on a fellow female officer.

Season 11 • Episode 22

When a Marine photographer disappears prior to providing his testimony in an Army court-martial hearing, the NCIS team investigates both the murder he witnessed, as well as his current piece on military veterans who are homeless in the D.C. area.

Season 11 • Episode 23

Director Vance gives DiNozzo a special assignment to bring home an Admiral’s daughter from Paris, but he must turn to his NCIS team for help after he enters a controversial crime scene.

Season 11 • Episode 24

The NCIS team investigates whether a fire on a U.S. Navy ship that served as a secret detention site for indicted terrorists was accidental or an intentional diversion for an escape.

Season 12 • Episode 1

Gibbs and McGee travel to Russia to safely escort home an NCIS computer engineer with classified intel, but their mission is compromised and they are forced to go off the grid while hunted by a mercenary group.

Season 12 • Episode 2

When a Navy Lieutenant is killed on his way to a private meeting with the President, the NCIS team must determine if the murder was part of a recent stream of muggings in the area or a targeted hit to keep intel secret.

Season 12 • Episode 3

Flashbacks into his past help tell the tale for Dr. Mallard as he and Bishop travel to England in search of answers to find out why an Englishman murdered in the United States would have a list of deceased Navy men on his person.

Season 12 • Episode 4

The Secretary of the Navy assigns the NCIS team to a joint terrorism task force after a Naval research scientist is murdered and the lead suspect is wanted by the Russian government.

Season 12 • Episode 5

During a joint Coast Guard and NCIS training exercise at sea, Gibbs and CGIS Agent Borin spot a deceased man overboard, who is discovered to be a missing crew member from a ship 60 nautical miles away.

Season 12 • Episode 6

The NCIS team must determine if the murder of a Navy Commander's wife is linked to her profession as a therapist or an act of terrorism after finding the Commander's name on a Jihadist target list.

Season 12 • Episode 7

After investigating the murder of a retired Master Sergeant, the NCIS team uncovers a fraudulent charity that preys on those searching for missing military personnel.

Season 12 • Episode 8

Gibbs searches for a way to clear a Navy Hospital Corpsman after she's indicted for illegally providing medical aid to the victims of a hit and run accident.

Season 12 • Episode 9

While stuck at the Dulles airport due to inclement weather, DiNozzo, Bishop, and her husband Jake work an NCIS case involving an elevated terrorist threat at Northeast airports during the Thanksgiving travel surge.

Season 12 • Episode 10

The NCIS team consults with three cyber-terrorists they imprisoned after a city-wide Internet shutdown the week before Christmas.

Season 12 • Episode 11

The NCIS team investigates copy-cat crime scenes while Gibbs navigates two ex-wives relentlessly trying to get his attention.

Season 12 • Episode 12

The NCIS team searches for a home-grown terrorist after a rescue mission in Syria reveals an American was involved in the capture of a social worker.

Season 12 • Episode 13

Gibbs and the team investigate when a Navy Lieutenant who is set to be the first openly gay service member to receive the Medal of Honor is murdered.

Season 12 • Episode 14

DiNozzo returns to the military academy he attended as a teen after a murdered Marine, who was an alumnus of the school, is found clutching the photo of a current student.

Season 12 • Episode 15

The NCIS team suspects Gibbs' arch-nemesis is behind an explosion at a global terrorism summit.

Season 12 • Episode 16

A covert identity created for one of Gibbs’ undercover cases from 20 years ago resurfaces when a murder victim is found living under the alias.

Season 12 • Episode 17

Evidence in an NCIS murder case reveals a rare painting on loan had been swapped for a fake, prompting DiNozzo, Sr. to share his knowledge and contacts of the black market art world with the team.

Season 12 • Episode 18

After the body of a thief is found in a Marine’s house, NCIS discovers the calling card of a terror group Delilah and the Department of Defense have been tracking.

Season 12 • Episode 19

The murder of a Petty Officer sparks a lead in a 40-year-old airport bombing cold case that Gibbs and DiNozzo have been assigned to for the past two years.

Season 12 • Episode 20

DiNozzo is partnered with his girlfriend ATF Special Agent Zoe Keates after evidence reveals that the murder weapon in an NCIS case was originally purchased for the controversial ATF sting operation “Operation Fast and Furious.”

Season 12 • Episode 21

Gibbs and Bishop travel to Afghanistan after the murder of a Marine in D.C. is linked to a terror group holding another Marine hostage overseas.

Season 12 • Episode 22

Special Agent Ned Dorneget from NCIS cyber operations assists the team when a Navy ensign who worked in the Office of Naval Intelligence is murdered.

Season 12 • Episode 23

The NCIS cyber case turns into a united global effort after evidence confirms “The Calling,” an international terrorist group that recruits children through the internet, has been purchasing S-bombs off the black market.

Season 12 • Episode 24

NCIS feverishly investigates a global terrorist group that is recruiting teens via the Internet, following a deadly bombing overseas that results in an emotional and surprising loss for the team.

Season 13 • Episode 1

After being shot, Gibbs fights for his life aboard a Navy hospital ship, while DiNozzo and Joanna travel to Shanghai to try and take down the Calling.

Season 13 • Episode 2

Gibbs calls on the team to assist DEA Agent Luis Mitchell with a case that keeps going cold, but DiNozzo discovers there is more to Gibbs’ personal connection to the agent and his desire to help him succeed.

Season 13 • Episode 3

After a Marine is found murdered in Quantico hours after calling Gibbs to discuss a possible case, Bishop and McGee go undercover as a married couple to run surveillance on a Marine Lieutenant and his wife.

Season 13 • Episode 4

Vance partners with Gibbs and returns to field duty when a murder case is connected to a former NCIS agent he locked up for stealing evidence.

Season 13 • Episode 5

While visiting a pharmaceutical lab on a murder case, Abby is trapped with no communication to the outside world after armed men take over the building and hold everyone hostage.

Season 13 • Episode 6

When a Petty Officer’s murder matches the M.O. of a local serial killer, the NCIS team must determine if this is the killer’s latest victim or the work of a copycat.

Season 13 • Episode 7

The NCIS murder case of a retired Navy Lieutenant Commander forces Ducky to reveal his participation in a secret society that solves cold cases.

Season 13 • Episode 8

DiNozzo is reunited with his ex-girlfriend, Jeanne Benoit, when insurgents in Sudan attack a group of volunteer doctors, including her husband.

Season 13 • Episode 9

In order to clear his name, a Petty Officer volunteers to be court-martialed if NCIS agrees to conduct its own investigation after his murder case is dismissed due to a mishandled warrant.

Season 13 • Episode 10

The Secretary of Defense calls on NCIS to help a sailor who is battling leukemia to locate a donor for a bone marrow transplant, after two of his siblings are killed in the line of duty.

Season 13 • Episode 11

After Ducky is attacked by a man claiming to have information about his half-brother who died decades ago, the NCIS team searches for the perpetrator.

Season 13 • Episode 12

The passengers and crew of a private plane traveling from New Orleans to Washington, D.C., are poisoned and the evidence points to Abby's brother, the aircraft's missing chef. The episode continues on NCIS: New Orleans S2E12 Sister City (II).

Season 13 • Episode 13

While investigating the murder of a seaman who was set to testify before a grand jury, the NCIS team uncovers the resurgence of an international human-trafficking ring.

Season 13 • Episode 14

Four deep sea divers stay inside a diving chamber with a deceased body in order to decompress. The dead body belongs to a retired Petty Officer who died in mysterious circumstances.

Season 13 • Episode 15

When Secretary of the Navy Sarah Porter learns her daughter has been kidnapped, the NCIS team partners with the FBI to track the case, determine a motive and bring her home.

Season 13 • Episode 16

Doctor Cyril Taft experiences the rush of an NCIS case after he is assigned surgical duty to Gibbs’ suspect and finds key evidence.

Season 13 • Episode 17

The NCIS agents’ personal plans are interrupted when each of them catches errors in a seemingly cut-and-dried closed case.

Season 13 • Episode 18

The NCIS team re-examines an ambush on a group of Special Ops snipers in Iraq after an American couple is attacked in the same area six months later.

Season 13 • Episode 19

A Navy Public Affairs officer is murdered, and the victim's wife and mistress accuse each other of the crime.

Season 13 • Episode 20

Tony's identity is stolen by multiple perpetrators who go on to blackmail politicians.

Season 13 • Episode 21

Gibbs and Senior FBI Agent T.C. Fornell unite after two British prisoners, including a former spy, escape and arrive stateside via a shipping container.

Season 13 • Episode 22

When a 14-year-old foils a home invasion, Gibbs suspects the teenager is withholding pertinent details.

Season 13 • Episode 23

The NCIS team, alongside the FBI and MI6, continue an international manhunt for an escaped British spy who has left one colleague fighting for their life in ICU.

Season 13 • Episode 24

NCIS, the FBI, and MI6 continue an international manhunt for an escaped British spy who is targeting current and former agents.

Season 14 • Episode 1

The NCIS team investigates a deadly car explosion in D.C. that connects to NCIS Special Agent Nicholas “Nick” Torres, who disappeared six months ago while on a deep undercover assignment in Argentina.

Season 14 • Episode 2

NCIS uncovers a bomb plot and a long-running theft ring while investigating a death at a Quantico reunion.

Season 14 • Episode 3

When the NCIS team investigates a Marine Sergeant’s tragic fall from a building, her doctor confides in Gibbs and suggests he treat it as a murder investigation.

Season 14 • Episode 4

After the body of a Navy Lieutenant is discovered aboard a destroyer during a tiger cruise, when civilian guests are allowed to spend the night on the ship, Gibbs, Quinn, and Palmer travel out to sea to investigate.

Season 14 • Episode 5

When a missing MI6 officer is linked to a murdered Petty Officer, Gibbs sends Quinn and Bishop to Philadelphia to work with MI6 Officer Clayton Reeves.

Season 14 • Episode 6

After a kidnapped Petty Officer escapes her captor, NCIS uncovers a connection to her missing husband.

Season 14 • Episode 7

Torres boldly breaks protocol when he learns a witness in an NCIS case is wanted by U.S. Immigration and Customs Enforcement.

Season 14 • Episode 8

After NCIS Agent Bishop is sent to Gitmo to gather evidence for a Navy chaplain murder case, she questions her previous work at the NSA.

Season 14 • Episode 9

The NCIS team investigates a series of escalating threats against congresswoman Jenna Flemming, while Director Vance oversees her temporary protection detail.

Season 14 • Episode 10

After the NCIS team tracks evidence from the murder of a Navy captain to Ducky’s deceased mother, Ducky looks back and questions a pivotal life choice he made 37 years ago.

Season 14 • Episode 11

NCIS searches for new leads after an undercover operation to apprehend a businessman who uses acts of terror to manipulate the stock market is compromised.

Season 14 • Episode 12

When Gibbs spots the brother of an "NCIS Most Wanted" suspect, he takes the opportunity to assume his former alias and go undercover with their infamous anti-government militia.

Season 14 • Episode 13

During an NCIS hit-and-run investigation, Palmer joins a stranger on the outside ledge of a building in an attempt to save his life.

Season 14 • Episode 14

The murder of a Petty Officer in a small town outside D.C. prompts NCIS to once again work with "The Sherlocks," a privately funded investigative team that includes their newest member, Anthony DiNozzo, Sr.

Season 14 • Episode 15

After Abby's homeland security think tank is compromised and she is found in possession of a real bomb, the NCIS team discovers the leader of the group has been murdered and a theoretical terror playbook has been stolen. The crossover continues on NCIS: New Orleans S03E14 Pandora's Box (II).

Season 14 • Episode 16

Bishop is more determined than ever to seek revenge for the murder of Qasim, her late boyfriend, after Gibbs and the team find a new lead in the Chen case.

Season 14 • Episode 17

McGee discovers his apartment has been torn apart by a robber trying to locate an item of great value hidden somewhere by the convicted criminal who previously owned the unit.

Season 14 • Episode 18

To carry out a sailor's dying wish, Gibbs and the NCIS team reinvestigate a murder case that was originally ruled an accidental death.

Season 14 • Episode 19

The team must rely on an irritable Vietnam War veteran to solve a Marine's murder.

Season 14 • Episode 20

A Vice Admiral tasks McGee with tracking down the hackers who infected his laptop with ransomware before the virus wipes out all his data. The cyberterrorism escalates when the virus spreads to the whole NCIS office.

Season 14 • Episode 21

A Marine's murder has connections to a dirt bike gang that Torres joined while on an old undercover operation.

Season 14 • Episode 22

A Gunnery Sergeant's murder in a national park leads the team to join forces with the mounted police. While investigating the clues, they uncover a disturbing smuggling ring.

Season 14 • Episode 23

The team suspects foul play when a healthy, young Petty Officer mysteriously dies in his sleep aboard a Navy destroyer.

Season 14 • Episode 24

When a Navy SEAL vanishes during an unsanctioned trip, Gibbs, McGee, and Torres travel to an unpopulated area in Paraguay that's teeming with violent rebels.

Season 15 • Episode 1

The NCIS team tirelessly search for Gibbs and McGee two months after they were last seen fighting an elusive group of rebels in a Paraguay jungle.

Season 15 • Episode 2

NCIS investigates when the body of a murdered Navy Lieutenant, who disappeared over a year ago, is found by a cemetery grounds crew while relocating caskets on the property.

Season 15 • Episode 3

Torres' partner mysteriously vanishes during a stakeout with Metro P.D. The investigation uncovers new evidence from a decade-old murder case.

Season 15 • Episode 4

NCIS Special Agent Jacqueline Sloane, a forensic psychologist, joins the team just as a horrific storm shuts down Washington, D.C. During the power outage, a sailor is kidnapped, and Torres and Bishop go out to sea to track evidence.

Season 15 • Episode 5

Reeves sees his friend get kidnapped and the investigation reveals the primary suspect disappeared two days earlier with confidential military information.

Season 15 • Episode 6

A Petty Officer is found murdered on a golf course, and McGee spends hours on the victim’s ham radio trying to locate a key witness.

Season 15 • Episode 7

A convicted felon claims NCIS framed him for murder a decade ago, so Gibbs investigates and asks Ducky to conduct a new autopsy. Senior FBI agent Fornell joins the probe, since he was the lead investigator in the original joint FBI and NCIS case.

Season 15 • Episode 8

An NCIS person of interest in a bribery and fraud case is found murdered after a runner is led to his body by a strange voice.

Season 15 • Episode 9

The team tracks an elusive international arms dealer who recently murdered an MI6 officer.

Season 15 • Episode 10

As Torres and Sloane run protection detail for U.S. Senator John Phillips in Afghanistan for the holidays, they must urgently return to the States after hearing the senator’s son is in the ICU.

Season 15 • Episode 11

Torres and Bishop go undercover as a criminal couple available for hire, during an NCIS sting operation tracking illegal drug-running out of the Norfolk civilian marina.

Season 15 • Episode 12

After a seemingly happy and successful Navy Lieutenant appears to have taken her own life, Gibbs and the team conduct a thorough investigation, interviewing family and friends from her past and present.

Season 15 • Episode 13

After McGee and Torres visit the home of a high schooler who witnessed a hit-and-run, her parents flee with their daughter, leaving NCIS in the lurch.

Season 15 • Episode 14

After the body of a missing Navy commander is found, Vance orders Gibbs and the team to work with former FBI Agent Tobias "T.C." Fornell, the private investigator who was hired to locate him.

Season 15 • Episode 15

NCIS strikes a deal with convicted murderer Paul Triff, giving him a 48-hour furlough at his former residence, now McGee's home, in exchange for information that can convict his former cellmate, Gabriel Hicks, the murderer who deceived Gibbs and Fornell.

Season 15 • Episode 16

Gibbs and the team work to clear the name of retired Marine Sergeant John Ross when cyanide is found in one of the hundreds of care packages he sends to active-duty Marines.

Season 15 • Episode 17

Gibbs and Ducky are watching TV when they see the host handling a 200-year-old war stick that could be a match from a decade-old cold case.

Season 15 • Episode 18

The NCIS headquarters are evacuated after the team discovers a body as well as bomb materials on the roof of the squad room.

Season 15 • Episode 19

Gibbs is granted protective custody of a ten-year-old orphaned refugee, Elena, when an NCIS case reveals she is the target of a violent gang.

Season 15 • Episode 20

NCIS searches for a Petty Officer suspected of assault who escapes when the sheriff transporting him crashes into a lake.

Season 15 • Episode 21

Sara Carter begs Gibbs to investigate her mother's murder - she believes the wrong man was convicted.

Season 15 • Episode 22

When evidence reveals an NCIS team member is a hitman’s latest target, the team must search through old case files to determine who is seeking vengeance.

Season 15 • Episode 23

While Gibbs attends the memorial service for a friend who was lost at sea, he discovers that the deceased, Navy Captain Phillip Brooks, has been hiding in a fallout shelter after his boat was attacked and he swam to shore.

Season 15 • Episode 24

Sloane is adamant that a man who held her hostage and tortured her years ago in Afghanistan, and was believed to have been killed following her rescue, is alive and in D.C.

Season 16 • Episode 1

One month after Director Vance was kidnapped, Gibbs is assigned the role of acting director in his absence while the team searches worldwide for his whereabouts.

Season 16 • Episode 2

After a Navy Lieutenant is found murdered in his hot tub, the team interviews several families in the victim’s peculiar neighborhood.

Season 16 • Episode 3

One of the NCIS agents is starstruck after the team investigates an explosion outside the home of Navy Petty Officer First Class Todd Nicholas and his wife, popular reality TV star Sheba Nicholas.

Season 16 • Episode 4

Gibbs’ quiet vacation at his remote cabin is interrupted by a surprise visit from Tobias Fornell and Navy Captain Phillip Brooks, as well as a call from NCIS asking for his help locating a robber hiding in the woods near him.

Season 16 • Episode 5

After a 50-year-old tape recording left by a murder victim is found, the NCIS team tries to exonerate Ray Jennings, the Marine serving a life sentence for the crime.

Season 16 • Episode 6

After NCIS arrives at a Halloween crime scene, Torres recognizes the victim as a friend from federal law enforcement training.

Season 16 • Episode 7

After a mural by a street artist and activist is stolen, the NCIS investigation leads to a conspiracy regarding a Navy contractor and the safety of ocean mammals.

Season 16 • Episode 8

McGee and Bishop travel to Afghanistan after a murder case in the States is linked to a string of soldiers killed by friendly fire overseas.

Season 16 • Episode 9

When the lead suspect of an unsolved and high-profile robbery case is released from prison, the NCIS team resumes their investigation with an undercover stakeout.

Season 16 • Episode 10

The team’s holiday plans are put on hold when the murder investigation of a Navy veteran includes the discovery of a newborn baby who has no identification and no apparent ties to a family.

Season 16 • Episode 11

United States Secretary of Defense Wynn Crawford shuts down Gibbs' murder investigation and demands that Special Agents McGee and Torres be arrested for their actions in the case.

Season 16 • Episode 12

An old family friend, Army Corporal John Sydney, beseeches Gibbs to join him on a road trip to search for a missing military I.D. bracelet. Also, a Navy Lieutenant in NCIS protective custody is poisoned by an infamous drug dealer.

Season 16 • Episode 13

After a malnourished and confused 9-year-old is found hiding in a storage unit, NCIS reopens an old missing persons case when the girl is believed to be the daughter of a Navy recruit who disappeared 10 years ago. Also, Bishop discovers notes that Special Agent Ziva David kept on the case long after NCIS officially stopped investigating.

Season 16 • Episode 14

McGee reluctantly visits his high school after the unique computer password he used as a teenager is linked to the murder of a department of defense contractor. The case escalates when an intruder breaks into McGee’s home in an attempt to steal his archaic high school computer.

Season 16 • Episode 15

The NCIS team investigates a man overboard fatality from a Navy destroyer at sea. Also, Torres is frustrated with Vance’s assignment to mentor three high school students.

Season 16 • Episode 16

Jimmy is torn between family and work after his father-in-law, Ed, asks him to tamper with evidence from NCIS’ current murder investigation. Also, Ed’s poker buddy, Anthony DiNozzo, Sr., offers to help with the case.

Season 16 • Episode 17

Director Vance is notified by the Pentagon that the nuclear submarine Gibbs and Bishop are aboard to conduct a murder investigation has gone radio silent.

Season 16 • Episode 18

Torres relies on his team's investigative skills after he wakes up on a dilapidated fishing boat and is covered in blood and unable to remember the last 12 hours.

Season 16 • Episode 19

Following an active shooter lockdown at a Naval hospital, the team searches for a suspect who fled the scene.

Season 16 • Episode 20

NCIS investigates the murder of a Marine Major believed to have been killed in the 9/11 attack on the Pentagon after human remains are discovered at a construction site.

Season 16 • Episode 21

After entering cold case DNA into the system, Kasie solves a 30-year-old murder case, but a loophole in the legal system may set the suspect free.

Season 16 • Episode 22

After NCIS finds a secret government bank account that’s funding a nationwide network of vigilante justice, the team must determine who is acting as judge and jury.

Season 16 • Episode 23

The NCIS team investigates the murder of a Marine Sergeant in the States who was hailed as a war hero for his efforts overseas.

Season 16 • Episode 24

Former FBI Agent Tobias Fornell pleads with Gibbs to do whatever is necessary to take down drug dealers and suppliers in the area after his daughter, Emily Fornell, is hospitalized from an opiate overdose.

Season 17 • Episode 1

Ziva surprises Gibbs with a cryptic warning, prompting him to question why she remained underground for years while being presumed dead by family and friends, and what led to her return.

Season 17 • Episode 2

With their lives in danger, Gibbs and Ziva’s rogue investigation takes an unexpected turn when a possible terrorist plot is revealed.

Season 17 • Episode 3

After the body of a Marine Lieutenant is found hidden under an 18-wheeler, the NCIS team tracks the vehicle’s previous locations to pinpoint the crime scene and suspect.

Season 17 • Episode 4

The NCIS team links a bizarre crime scene at Arlington National Cemetery to a string of attacks on homeless veterans.

Season 17 • Episode 5

NCIS investigates Marine Corporal Laney Alimonte after evidence suggests she murdered her neighbor while being treated for insomnia by a hypnotherapist.

Season 17 • Episode 6

After a Petty Officer’s son is found murdered at his “welcome home from prison” party, evidence suggests Kasie’s lifelong best friend, Dante Brown, is the suspect.

Season 17 • Episode 7

While investigating a Marine’s murder, the NCIS team uncovers a labyrinth of live-streaming spy cameras hidden in the rooms of a Virginia motel.

Season 17 • Episode 8

The NCIS team investigates the murder of a musician in the Navy’s most elite band that performs at diplomatic events around the world.

Season 17 • Episode 9

The NCIS team investigates a Petty Officer's murder that was livestreamed on a popular gaming app.

Season 17 • Episode 10

Gibbs and the team help Ziva with the "one thing" she said she'd take care of before returning to her family.

Season 17 • Episode 11

Gibbs must face the consequences of helping Ziva with "the one thing" she said she'd take care of before returning to her family.

Season 17 • Episode 12

The NCIS team investigates an F-18 crash and the subsequent disappearance of the pilot.

Season 17 • Episode 13

After a body is found at an unmanned aerial vehicle testing site, the NCIS team must determine if the death was murder or an accident.

Season 17 • Episode 14

After Torres and Bishop are victims of a hit-and-run, Torres fights for his life in the Intensive Care Unit.

Season 17 • Episode 15

The lead suspect in an NCIS murder investigation is a woman Gibbs' friend, Phillip Brooks, met on a dating site.

Season 17 • Episode 16

While investigating the suicide of a retired Navy officer who left a rare, valuable - and possibly stolen - coin to the National Museum of the Navy, the team imagines themselves in his life story in order to piece together how the coin ended up in his possession.

Season 17 • Episode 17

As the NCIS team investigates the death of a Navy officer murdered the same way as his parents a decade ago, they stumble across a storage container filled with dollhouses that display recreations of murder scenes.

Season 17 • Episode 18

The team searches for answers when the body of a well-regarded Navy technician in the Reserves is found floating in a lake where a popular community event is being held.

Season 17 • Episode 19

When Kasie and Jimmy are held hostage in a diner after a jewelry store robbery goes awry, they attempt to keep the other customers safe from the thieves.

Season 17 • Episode 20

The team tries to verify the identity of Joe Smith, who claims he served on the U.S.S. Arizona during the attack on Pearl Harbor, and wants to be buried there upon his death.

Season 18 • Episode 1

Gibbs and Fornell attempt to track down the leader of a drug ring who supplied drugs to Fornell's daughter.

Season 18 • Episode 2

Flashbacks reveal the murder case that first introduced young Gibbs to NCIS and his introduction to young, new-to-America Ducky.

Season 18 • Episode 3

The discovery of two dead bodies leads the NCIS team into the wild world of modern-day treasure hunting.

Season 18 • Episode 4

McGee and his wife Delilah's Bahamian vacation turns into a high-stakes mission when a case NCIS is tracking of a dead escape room manager has ties to the island.

Season 18 • Episode 5

Gibbs and Fornell's crusade to find the head of the drug ring responsible for Fornell's daughter Emily's overdose comes to a climax.

Season 18 • Episode 6

Following a tip about smuggled weapons, Bishop and Torres engage in a shootout in a former sheriff's residence that's now a historical site, only to find themselves locked in abandoned jail cells there.

Season 18 • Episode 7

NCIS investigates the murder of a Navy officer who was killed while driving home a recently released inmate.

Season 18 • Episode 8

When Sloane’s name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus.

Season 18 • Episode 9

NCIS dives into the competitive world of food trucks after finding a man frozen to death in the back of one.

Season 18 • Episode 10

NCIS uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.

Season 18 • Episode 11

Vance assigns McGee, Torres, and Bishop to Covid compliance duty at a foreign affairs summit, where they discover a link to another NCIS team's murder case.

Season 18 • Episode 12

Evidence from the stabbing of a Marine Sergeant leads Torres to meet his father who left when he was a child.

Season 18 • Episode 13

The team investigates a cyclist killed in a hit and run. Gibbs prepares to testify against a financial advisor who stole millions from his Navy clients.

Season 18 • Episode 14

NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs’ former neighbor.

Season 18 • Episode 15

When members of an NCIS Regional Enforcement Action Capabilities Training Team (REACT) are killed during an explosion, NCIS Special Agent Jessica Knight, the lone surviving member, helps crack the case using high tech body armor.

Season 18 • Episode 16

While pursuing a dangerous arms dealer, the team is shocked when Bishop is implicated in an old NSA leak while Gibbs and Marcie realize the killer they've been tracking may be onto them.

Season 19 • Episode 1

As the NCIS team searches for Gibbs after wreckage from his boat is discovered, they find out he was tracking a serial killer with journalist Marcie Warren, who wrote an exposé on him.

Season 19 • Episode 2

While trying to find the serial killer Gibbs was after, the NCIS team discovers another person has been tracking the case as well.

Season 19 • Episode 3

Gibbs and Parker go on a road trip to find one of the serial killer's victims. Also, Agent Knight goes undercover at a large manufacturing company with ties to the murders.

Season 19 • Episode 4

Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.

Season 19 • Episode 5

The NCIS team investigates the death of a Navy officer whose body suddenly explodes before Jimmy can examine it.

Season 19 • Episode 6

NCIS investigates the death of a beloved Navy commander who trained some of the top athletes in the country.

Season 19 • Episode 7

NCIS investigates the death of a man on a cruise ship whose body is discovered in the ship's sauna by none other than McGee's mother-in-law, Judy.

Season 19 • Episode 8

NCIS investigates the case of a Navy reservist whose body is found in a beat-up car at the end of a gun range.

Season 19 • Episode 9

When a hotshot financial advisor is found shot at a Naval station, NCIS investigates the case by interviewing the victim’s three-dimensional hologram of herself, which she created before her death.

Season 19 • Episode 10

NCIS is called in when Navy Chief Warrant Officer Rafi Nazar is suspected of trying to sell stolen classified Navy software used to pilot combat drones.

Season 19 • Episode 11

After a civilian research vessel in the North Atlantic picks up a small boat of wounded Navy officers, NCIS arrives on the ship and is forced to hide after discovering terrorists on board.

Season 19 • Episode 12

When the body of a Navy Lieutenant is discovered missing an eye, the NCIS investigation leads to the world of cage fighting.

Season 19 • Episode 13

While investigating the death of an intruder at Quantico, Jimmy and Kasie are exposed to a deadly biotoxin. The NCIS team calls on Dr. Carol Wilson for help as they race to find the antidote.

Season 19 • Episode 14

As NCIS investigates the cause of death of a reservist Navy SEAL surgeon, they're forced to bring Vance's daughter to help with a highly dangerous mission.

Season 19 • Episode 15

Parker's delinquent past resurfaces when NCIS is called to Philadelphia to investigate the death of a Petty Officer.

Season 19 • Episode 16

A gruesome mishap at a Petty Officer’s gender-reveal party leads NCIS to the case of a missing teacher that was popularized on a true crime podcast.

Season 19 • Episode 17

NCIS investigates the apparent suicide of a retired Navy officer who was in Palmer and Knight's grief group; Torres gets a call from NCIS Special Agent Jane Tennant to come to Hawai'i. The crossover continues on NCIS: Hawai'i S01E18 T'N'T (II).

Season 19 • Episode 18

When an infamous arms dealer, Reymundo Diaz, is released from prison and bodies start piling up, Torres is forced to face the repercussions of his actions during an undercover operation he worked on years ago.

Season 19 • Episode 19

NCIS investigates a ring of clever teenage partygoers when a string of break-ins takes place at Marine Base Quantico.

Season 19 • Episode 20

NCIS investigates the unexpected death of a Navy reservist who was an investigative journalist.

Season 19 • Episode 21

When Agent Parker is framed for murder, the team puts their jobs and lives on the line to buy time and uncover the truth.

Season 20 • Episode 1

Special Agent Alden Parker is still on the run with his ex-wife Vivian, so the team investigates who from his past might have a personal vendetta against him in hopes of clearing Parker's name. The crossover continues on NCIS: Hawai'i S02E01 Prisoners' Dilemma (II).

Season 20 • Episode 2

McGee’s personal life and professional life intersect when a dad from his children’s school is linked to a break-in at a government storage bunker.

Season 20 • Episode 3

When a dead body is found at an ancient burial site that is thought to be cursed, the team tries to determine the motive and the symbolism behind the crime.

Season 20 • Episode 4

Agent Knight's past resurfaces when her ex-boyfriend, a National Parks Service agent, teams up with NCIS to investigate a campsite murder.

Season 20 • Episode 5

Agent Parker steps up to protect Director Vance after a terrifying home invasion.

Season 20 • Episode 6

When an NCIS agent turns up dead and Kasie goes unaccounted for, the team must work quickly to find the killer.

Season 20 • Episode 7

NCIS must investigate the Secretary of the Navy when her husband claims she tried to murder him.

Season 20 • Episode 8

After an unknown shooter causes chaos at an annual Thanksgiving 5K, time is of the essence for the NCIS team to find the culprit.

Season 20 • Episode 9

NCIS investigates the death of a college student who was killed while running across the street and had connections to McGee’s wife, Delilah.

Season 20 • Episode 10

NCIS agents from Washington, D.C., Los Angeles and Hawai’i, all in D.C. to attend the retirement party of a beloved Federal Law Enforcement Training Center (FLETC) professor, find themselves jointly investigating his shocking suicide. The crossover continues on NCIS: Hawai'i S02E10 Deep Fake (II) and NCIS: Los Angeles S14E10 A Long Time Coming (III).

Season 20 • Episode 11

Parker discovers he's a victim of identity theft while investigating the unusual murder of a Navy ensign.

Season 20 • Episode 12

When an old pal of Torres’ comes to him, disheveled and bloodied for guidance amidst an undercover FBI operation and then disappears, NCIS helps track him down.

Season 20 • Episode 13

In preparation for a role, a world-renowned actress shadows the NCIS team as they investigate a decapitation case.

Season 20 • Episode 14

Parker grapples with his emotions when a conman from his past turns up as a prime suspect in the murder of a Navy officer transporting millions of dollars’ worth of opioids.

Season 20 • Episode 15

NCIS investigates the death of a ride-share driver who was found after a car accident.

Season 20 • Episode 16

The NCIS team jumps into motion to investigate who is responsible for a potential bioterror attack at a strip mall parking garage.

Season 20 • Episode 17

NCIS works to solve the murder of a Marine private who appears to have been killed for helping an Afghan refugee.

Season 20 • Episode 18

The NCIS team digs deep to investigate a Navy Lieutenant who’s accused of trying to murder her husband but has no memory of the attack.

Season 20 • Episode 19

Agent Knight goes viral for saving a mother and child from a potentially fatal car accident.

Season 20 • Episode 20

NCIS works to solve the murder of a senator’s daughter who has a rebellious reputation and large online following.

Season 20 • Episode 21

When a suspicious murder occurs in the classified section of the National Archive, NCIS must investigate a string of Russian spy encounters that may be linked to the crime.

Season 20 • Episode 22

Agent Torres finds himself in prison as the team tries to stop an impending terror attack on U.S. soil.

Season 21 • Episode 1

Algún Día

The NCIS team must help Torres when he puts his future at stake by confronting the man who tormented his family when he was a child.

Season 21 • Episode 2

The Stories We Leave Behind

As NCIS mourns the loss of Ducky, the agents find comfort in working on one of his unfinished cases involving a woman whose father was dishonorably discharged from the Marines.

Season 21 • Episode 3

Lifeline

When the NCIS team engages in Walk-a-Mile day to gain a new perspectives on different departments, things take a turn when Kasie receives a distress call from a mysterious man.

Season 21 • Episode 4

Left Unsaid

The NCIS team is in a race against time to find a missing officer who disappeared during his wedding proposal.

Season 21 • Episode 5

The Plan

With the help of Knight's dad, NCIS works to unravel the mystery of a recently used service weapon belonging to a missing agent.

Season 21 • Episode 6

Strange Invaders

After discovering a Navy pilot's body riddled with unusual wounds, NCIS' investigation draws the team into the rabbit hole of UFO conspiracy theories.

Season 21 • Episode 7

A Thousand Yards

NCIS comes under attack by a mysterious enemy from the past.

Season 21 • Episode 8

Heartless

The NCIS team looks for a motive behind the kidnapping and death of a famous heart surgeon.

Season 21 • Episode 9

Prime Cut

After discovering the remains of a Marine captain, the NCIS team travels to Texas to interrogate the suspected killer.

Season 21 • Episode 10

Reef Madness

Parker and Knight discover three bodies on an old Navy ship that's about to be sunk and turned into an artificial reef, when they're suddenly locked inside by a mysterious figure.

Season 22 • Episode 1

Empty Nest

NCIS searches for a missing undercover agent in the midst of an active hostage situation.

Season 22 • Episode 2

Foreign Bodies

As Vance prepares to host diplomatic talks with Venezuela, the team is called in to investigate the dead body of one of his inside men.

Season 22 • Episode 3

The Trouble with Hal

NCIS is called in to investigate when a Lieutenant returns home on the eve of Halloween to find a surprise party being thrown for someone else at his place.

Season 22 • Episode 4

Sticks & Stones

After receiving intelligence on deadly threats to multiple locations that could lead to a catastrophic war, NCIS is called in to try to neutralize the danger.

Season 22 • Episode 5

In from the Cold

NCIS works with the CIA to discover what secrets are being kept by Captain Butler, an elderly former spy with dementia.

Season 22 • Episode 6

Knight and Day

Things become tense when Knight is assigned to protect his wife after the home of a high-level defense contractor is attacked.

Season 22 • Episode 7

Hardboiled

Torres receives intel from a confidential informant regarding top secret Naval information that's at risk of being sold.

Season 22 • Episode 8

Out of Control

NCIS investigates a murder related to a car that begins driving on its own.

Season 22 • Episode 9

Humbug

When a shocking tell-all threatens to ruin Christmas for a decorated Marine, NCIS must uncover the truth and deliver a holiday miracle - before the book hits shelves and turns a hero's legacy into a holiday disaster.

Season 22 • Episode 10

Baker's Man

After NCIS learns that the owner of Parker's favorite bakery is being blackmailed, they hatch a plan to save her from the perpetrators.

Season 22 • Episode 11

For Better or Worse

NCIS stages a fake wedding for two of its own in an attempt to take down the mob.

Season 22 • Episode 12

Fun and Games

NCIS investigates the fatal poisoning of one of Kasie's forensic scientists.

Season 22 • Episode 13

Bad Blood

NCIS investigates the case of a Navy Lieutenant found dead at a blood donation bank.

Season 22 • Episode 14

Close to Home

When Torres receives a text from Jimmy's daughter saying she has discovered a large sum of money near a Naval library, the team works together to investigate.

Season 22 • Episode 15

Moonlit

After a Navy Lieutenant's death reveals ties to Special Agent Sawyer, Torres and Knight uncover a murder linked to a wealthy family.

Season 22 • Episode 16

Ladies' Night

A girls' night out takes an unexpected turn when NCIS is called to investigate the motive of a possible arsonist.

Season 22 • Episode 17

Killer Instinct

After NCIS captures the hitman known as "The Poet," the team races to uncover who ordered the assassination of a Navy chief.

Season 22 • Episode 18

After the Storm

When a trio of combat vets are found murdered in a D.C. motel room, NCIS tracks down a suspect who refuses to talk to anyone but Sam Hanna.

Season 22 • Episode 19

Irreconcilable Differences

McGee's career and credibility are on the line when he investigates the Deputy Director for corruption.

Season 22 • Episode 20

Nexus

As NCIS investigates a dangerous connection between the Nexus cartel and Parker's longtime nemesis, mob boss Carla Marino, the team uncovers a high-stakes plot involving stolen nuclear material.

Season 23 • Episode 1

Prodigal Son (1)

Reeling from his father’s murder, Parker goes to extreme lengths to hunt down the woman he holds responsible, mob boss Carla Marino, jeopardizing not only his own future but the team’s.

Season 23 • Episode 2

Prodigal Son (2)

Parker’s pursuit of vengeance for his father’s murder could have deadly consequences, while his sister, Navy vice admiral Harriet Parker, faces an impossible choice.

Season 23 • Episode 3

The Sound and the Fury

When a petty officer’s death is connected to a blackmail investigation, the team is forced to work with Special Agent Sawyer on the case, which takes a terrifying turn for Torres. Meanwhile, Knight is offered an opportunity to train with NCIS Elite.

Season 23 • Episode 4

Gone Girls

The team investigates a U.S. marine who is believed to have kidnapped a man's wife.

Season 23 • Episode 5

Now and Then (II)

The cold case of a small-town death of a naval officer in the ‘90s is unexpectedly re-opened in the present day, sending the team on a manhunt for justice. The crossover starts on NCIS: Origins S02E05 Funny How Time Slips Away (I).

Season 23 • Episode 6

Page-Turner

When McGee is kidnapped while promoting his latest book in the Deep Six crime series, the team investigates his self-professed “#1 fan” – and a potential link to a murder case involving stolen classified documents.

Season 23 • Episode 7

God Only Knows

A kidnapped teen leads the team to a Navy SEAL who survived captivity by the Taliban but may have committed murder after returning home. Also, Jimmy finally shares his findings about the mysterious death of Parker’s mother with his boss.

Season 23 • Episode 8

Stolen Moments

When a man is shot by the Secret Service outside the vice president’s official residence, NCIS is aided in the case by a new member of the team: an AI chatbot being beta-tested by the Department of Justice.

Season 23 • Episode 9

Heaven and Nature

McGee and Torres try to recover a stolen truck filled with toys for the Navy’s annual Christmas drive while the truth about Parker’s mother is finally revealed. Also, Knight is given her first NCIS: Elite mission, which involves tracking down a former member of the team.

Season 23 • Episode 10

Her

On her first NCIS: Elite mission, Knight is given orders to hunt down and arrest Eleanor Bishop after the former member of the NCIS team is designated a wanted cyber-terrorist. In need of someone to trust, Bishop turns to Torres, and the two come face to face for the first time since she abruptly left nearly five years ago.

Season 23 • Episode 11

Army of One

When a desperate man barricades himself inside an ammo warehouse, Knight is the only negotiator he’ll talk to, claiming she once saved him before. As explosives tick and trust frays, Knight clashes with the CID officer running the standoff, each convinced theirs is the only way out.

Season 23 • Episode 12

In Too Deep

A murdered drone pilot leads the team to a missing woman from McGee’s past and a relationship he thought was long behind him. But as the case deepens, McGee realizes her reappearance could unravel more than an investigation, it could change the course of his life.

Season 23 • Episode 13

All Good Things

When the son of a Marine that Gibbs once helped comes to NCIS in desperation, the fractured team reunites off the books; chasing justice without a badge may cost them more than their careers.

Season 23 • Episode 14

Fleeting

Navy Week turns electric when a stolen squad car flips and reveals a sailor stabbed in the trunk; as D.C. spirals into chaos, the team chases a killer while carrying the weight of recent events.

Season 23 • Episode 15

Knick-Knack

A murder aboard a museum ship becomes a cryptic treasure hunt when a dying Navy captain leaves a final clue; to solve it, the team must decode what was worth killing -- and dying -- for.

Season 23 • Episode 16

S.O.S.

S.O.S. A Navy lieutenant resurfaces a year after her plane vanished with a story that doesn’t quite add up. As the team peels back the mystery of a crash that was anything but accidental, every answer sparks a new twist.

Season 23 • Episode 17

Reboot (1)

With most of NCIS away and the mainframe shut down for a midnight upgrade, Kasie and a skeleton crew are left in a darkened building when someone begins hunting from inside. What starts as a routine reboot becomes a high-stakes game of cat and mouse through powerless hallways until an unexpected ally, Sam Hanna, steps into the fight.

Season 23 • Episode 18

Bad Impressions (2)

The team races to help one of their own who has been framed for murder and caught in a widening conspiracy that could compromise national security.

Season 23 • Episode 19

Deal with the Devil

As a secret immunity deal threatens to let a man walk free, Parker fights to keep the case alive. But when his estranged sister suddenly appears – and buried family wounds resurface – the battle for justice becomes deeply personal.

Season 23 • Episode 20

Sons and Daughters

One year after a deadly coffee shop bombing, a new explosion proves the attack wasn’t the work of a lone wolf – a case that forces the team to confront legacy and loyalty.