Gotcha! in "Big Brother" Season 5 Episode 6
Pictured: Daniela Ruah (Special Agent Kensi Blye), LL COOL J (Special Agent Sam Hanna), Eric Christian Olsen (LAPD Liaison Marty Deeks) and Chris O'Donnell (Special Agent G. Callen). Callen goes undercover at a prestigious high school after a 15-year-old hacker compromises terrorist missions, on NCIS: LOS ANGELES, Tuesday, Oct. 29 (9:00-10:01 PM, ET/PT) on the CBS Television Network. Photo: Robert Voets/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.