WHILE DEEKS IS UNDER ARREST AND INTERROGATED FOR THE MURDER OF HIS FORMER PARTNER, THE TEAM RACES TO TRY AND PROVE HIS INNOCENCE, ON "NCIS: LOS ANGELES," MONDAY, DEC. 7

Editor's note: The air date of this episode has changed.

"Internal Affairs" - While Deeks is under arrest and interrogated for the murder of his former partner, the team races to try and prove his innocence, on NCIS: LOS ANGELES, Monday, Dec. 7 (9:59-11:00 PM, ET/PT), on the CBS Television Network.

REGULAR CAST:

Chris O'Donnell (NCIS Special Agent G. Callen)
LL COOL J (NCIS Special Agent Sam Hanna)
Linda Hunt (Henrietta "Hetty" Lange)
Daniela Ruah (NCIS Special Agent Kensi Blye)
Eric Christian Olsen (LAPD Detective Marty Deeks)
Barrett Foa (Tech Operator Eric Beale)
Renée Felice Smith (NCIS Intelligence Analyst Nell Jones)
Miguel Ferrer (NCIS Assistant Director Owen Granger)

GUEST CAST:

Patrick St. Esprit (LAPD Lieutenant Roger Bates)
Pamela Reed (Roberta Deeks)
Jamie Mann (Monica Lee)
Nick Chinlund (LAPD Detective Bruce Steadman)
Karina Logue (LAPD Detective Ellen Whiting, Internal Affairs)
Paulina Olszynski (Julie Sanders/Tiffany Williams)
Joe Thornton Jr. (LAPD Officer Northam)

WRITTEN BY: Chad Mazero and R. Scott Gemmill

DIRECTED BY: Eric Pot