NCIS LOS ANGELES Season 3 Episode 19 Vengeance Sneak Peek : “Vengeance” – When the body of a Navy Intel Officer is found, evidence points to a team of Navy SEALs who are about to depart on a hostage rescue mission, leaving former Navy SEAL Sam Hanna to interrogate the group and possibly compromise the mission, on NCIS: LOS ANGELES, Tuesday, March 27 (9:00-10:00 PM, ET/PT) on the CBS Television Network.