A SPECIAL AGENT FALLS OFF THE GRID DURING AN UNDERCOVER ASSIGNMENT, ON THE SECOND SEASON PREMIERE OF "NCIS: LOS ANGELES," TUESDAY, SEPT. 21

Eric Christian Olsen ("Fired Up") Reprises his Role as LAPD Liaison Officer Marty Deeks

"Human Traffic" - When one of their own disappears while undercover, the team must work alongside LAPD on a case involving human-trafficking, money laundering and drugs, on NCIS: LOS ANGELES, Tuesday, Sept. 21 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

SERIES REGULARS:

NCIS Special Agent G. Callen: Chris O'Donnell
NCIS Special Agent Sam Hanna: LL COOL J
Henrietta "Hetty" Lange: Linda Hunt
Operational Psychologist
Nate Getz: Peter Cambor
NCIS Special Agent Kensi Blye : Daniela Ruah
LAPD Detective Marty Deeks: Eric Christian Olsen
Tech Operator Eric Beal: Barrett Foa

GUEST CAST:

LAPD Detective Frank Scarli: Michael Harney
Radovan Lazik: Jon Sklaroff
LAPD Detective
Jess Traynor: Meta Golding
Tommy Bishop: Moe Irvin
Bodyguard: Sonny Surowiec

WRITTEN BY: Shane Brennan

DIRECTED BY: James Whitmore, Jr.

RATING: To Be Announced