VIDEO: Sneak Peek - Mystery Marine on CBS's NCIS: LOS ANGELES

On the October 2 episode of the CBS drama series NCIS: LOS ANGELES titled 'Recruit,' a drone strike on a bomb-making compound in Afghanistan reveals the body of a recently retired Marine, leaving the NCIS: LA team to investigate why the Marine returned to Afghanistan and whether or not he betrayed the country he fought for. The episode airs Tuesday, Oct. 2 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Get a sneak peek below!