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

When a blind photographer shoots the body of a Petty Officer on film, the NCIS team uses his special insight to investigate the crime. Meanwhile, both Gibbs and Tony are…

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. Meanwhile, Gibbs gets…

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

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,…

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.

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

The NCIS team investigates the disappearance of a Navy petty officer who is the sole witness in an upcoming murder trial.

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.

Abby becomes fixated on solving a murder; DiNozzo’s latest fling leads to an interesting Halloween.

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

When Tony opens a mysterious letter thinking it’s for him, a small puff of white powder comes out and it releases a possible deadly virus. Kate calls for help and…

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. Meanwhile, Ziva…

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

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 IAEA (International…

A group of serial terrorists seek revenge and send Ari (guest star Rudolf Martin) on an assignment to kill Gibbs. The NCIS team goes on a hunt after him, but…

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…

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

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

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

When the NCIS team learns that the missing 10 kilograms of highly toxic chemical weapons are now in the hands of Mamoun Sharif, a wanted terrorist, they will have to…

After a marine is murdered in the school campus the team discovers a possible suspect for his murder, but they are soon leaded back to zero point when they find…

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.

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

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…

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

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 unintentional drug overdose,…

The team investigates 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…

A “meat puzzle” starts when Ducky identifies the pieces of three bodies that were stuffed inside a barrel few months ago and they turn out to be bodies of a…

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…

Erin Kendall (guest star Danica McKellar) claims to have seen a murder of a sailor in an apartment across from hers. Gibbs assigns the case to McGee who believes that…

McGee breaks the rules, risking his NCIS job, to help his sister Sara, who shows up disoriented and bloodied. While he works on figuring out what happened to his sister,…

The team takes 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…

When a burnt and mummified body of a missing and wanted person is found on a Marine base, in a furnace, NCIS must work with FBI. The burnt man turns…

NCIS starts the investigation after petty officer Manda King is found dead in the bartender’s bed. The suspect is the owner of the competing club where Manda’s sister sings.

Secrets from Ducky’s clandestine past come to the forefront after he’s attacked at a crime scene. The team uncovers disturbing secrets from the good doctor’s past.

When a sailor officer receives a pair of blue eyeballs, the NCIS team starts investigating the case. Gibbs comes on a trace for a past Navy agent that does illegal…

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 then later almost kills…

A petty officer that just returned to his job is found dead in the backstage of the bikini contest. The team finds out that she possibly had a stalker behind…

When a missing Lance Corporal is found dead in a vacant house, the NCIS team discovers that he was buried in the backyard and then exhumed. They learn about his…