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…

The NCIS team investigates the murder of a Marine Sergeant in the States who was hailed as a war hero for his efforts overseas. Also, Gibbs turns to Doctor Grace…

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…

The team suspects foul play when a healthy, young petty officer mysteriously dies in his sleep aboard a Navy destroyer. Wedding stress reaches its peak for McGee and his fiancée.

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.

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…

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…

A Department of Defense investigator scrutinizes the NCIS team’s response to the Bodnar case involving the murder of Ziva’s father and Vance’s wife. Meanwhile, the team examines whether a Petty…

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. Meanwhile, the…

After new evidence reveals that the Port-to-Port killer has infiltrated the agency, the NCIS teams chase every lead in a race to track him down.

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

With the appearance of Mossad agent Michael Rivkin, Tony is forced to question Ziva’s loyalty to NCIS. Meanwhile, in Los Angeles, Special Agent Callen goes undercover to try to catch…

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,…

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 terrorist from Bette Noir 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.

Callen and Sam travel to the USS Allegiance in the Persian Gulf to work with Navy Captain Harmon “Harm” Rabb, Jr. (David James Elliott) when the NCIS team uncovers ISIS…

After Sam is shot during a firefight with the cartel, a suspect is interrogated and reveals new information on the whereabouts of Spencer Williams, the man who kidnapped Mosley’s son…

After Sam’s wife, Michelle, is taken from her home, the kidnappers demand the prison release of Tahir Khaled, Sam’s arch nemesis, in exchange for information on her whereabouts.

Sam and Callen go undercover as firefighters when top secret information about suspected terrorists is stolen from a secure Department of Defense container at the site of a fire.

Some presumed dead crew members show up from the missing tanker that was involved in Arkady’s deal with Russia.

When a news reporter announces the group responsible for the deadly explosion at a military-sponsored charity event, the team must investigate her claims and search for the attacker.

Deeks goes undercover to obtain information about an infamous arms dealer looking to get back in the business, but the woman he befriends leads the operation in a dangerous directon….

Callen and the NCIS: LA team confront their vengeful adversary, the Chameleon, when an undercover case ignites a deadly mind game orchestrated by the criminal mastermind.

A Navy SEAL imposter’s death gives the team a lead on a missing canister used to make deadly bombs.

Pride (Scott Bakula) suspects a mole among the ranks as NCIS and local law enforcement continue to track the Broussard Syndicate after new intelligence suggests a breach at the ports.

After Callen’s cover is blown and compromises the unit, the NCIS team races to find out who is behind the security breach.