AFTER THE U.S. AMBASSADOR NARROWLY ESCAPES A TERRORIST ATTACK AT THE U.S. CONSULATE IN TUNISIA, CALLEN AND SAM ARE SENT ON A SECRET, DANGEROUS MISSION TO OBTAIN CRIME SCENE EVIDENCE, ON "NCIS: LOS ANGELES," MONDAY, JAN. 19

Julie Chen, Host of "The Talk," Guest Stars as U.S. Ambassador Nancy Kelly

"In The Line Of Duty" - After U.S. Ambassador Nancy Kelly narrowly escapes a terrorist attack at the U.S. consulate in Tunisia, Callen and Sam are sent on a secret, dangerous mission to obtain key evidence from the crime scene. Upon their return, the team seeks Kelly's help to provide missing information, on NCIS: LOS ANGELES, Monday, Jan. 19 (9:59-11:00 PM, ET/PT) on the CBS Television Network. Julie Chen, host of THE TALK, guest stars as U.S. Ambassador Nancy Kelly.

REGULAR CAST:

Chris O'Donnell (NCIS Special Agent G. Callen)
LL COOL J (NCIS Special Agent Sam Hanna)
Linda Hunt (Operations Manager 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:

Julie Chen (U.S. Ambassador Nancy Kelly)
Don Franklin (Navy Captain Alan Beck)
Joe Nieves (FBI Special Agent Brad Reese)
Maz Siam (Munir)
Paul Tassone (Otto/Steve/Walter)
Jay Pickett (Navy Commander Tom Harris)
Delpaneaux Wills (Security Detail Leader Ray)
Neil Arnote (Clayton Waters)
Tory Berner (Receptionist)

WRITTEN BY: Tim Clemente

DIRECTED BY: Karen Gaviola