"Kill House" -- Pictured: Daniela Ruah (Special Agent Kensi Blye). Callen, Sam, Kensi and Deeks go undercover as an elite tactical force in order to investigate an ambush tied to a cartel kingpin with terrorist connections, on NCIS: LOS ANGELES, Tuesday, Feb. 5 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Ron P. Jaffe/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

"Kill House" -- Pictured: Eric Christian Olsen (LAPD Liaison Marty Deeks). Callen, Sam, Kensi and Deeks go undercover as an elite tactical force in order to investigate an ambush tied to a cartel kingpin with terrorist connections, on NCIS: LOS ANGELES, Tuesday, Feb. 5 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Ron P. Jaffe/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

"Kill House" -- Pictured: LL COOL J (Special Agent Sam Hanna). Callen, Sam, Kensi and Deeks go undercover as an elite tactical force in order to investigate an ambush tied to a cartel kingpin with terrorist connections, on NCIS: LOS ANGELES, Tuesday, Feb. 5 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Ron P. Jaffe/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

"Kill House" -- Pictured: Chris O'Donnell (Special Agent G. Callen). Callen, Sam, Kensi and Deeks go undercover as an elite tactical force in order to investigate an ambush tied to a cartel kingpin with terrorist connections, on NCIS: LOS ANGELES, Tuesday, Feb. 5 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Ron P. Jaffe/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.