Callen and Sam return for a 12th season of assignments, as the Naval Criminal Investigative Service encounter more and more threats. Chris O'Donnell and LL Cool J star.

A new NCIS episode debuts on Monday night and revolves around a group of friends for one of the team. An investigation begins ...

Eric Christian Olsen, best known for his role as Special Agent Marty Deeks on NCIS LA, may have left the show but he's far from idle. NCIS Los Angeles ... secured a second season renewal earlier ...

Actors Kyle Schmid and Tyla Abercrumbie discussed some of the new upcoming episodes of the NCIS: Origins show. The spinoff is set in the 1990s, years before the events of NCIS.

Eric Christian Olsen and boss tease big 'reveal' in two-part episode 'NCIS: LA' boss on the season finale and the explosion that could spell disaster for the team -- EXCLUSIVE PHOTO 'NCIS ...