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

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.

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