NCIS PARTNERS WITH THE NATIONAL SECURITY AGENGY (NSA) WHEN THE KIDNAPPING OF A SOFTWARE GENIUS THREATENS NATIONAL SECURITY, ON "NCIS: LOS ANGELES," TUESDAY, SEPT. 27

"Cyber Threat" - The NCIS team joins forces with the NSA to find the creator and controller of a software program linked to a cyber attack against the Department of Defense. Meanwhile, Callen continues searching for more information about his past, on NCIS: LOS ANGELES, Tuesday, Sept. 27 (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
NCIS Special Agent Kensi Blye ................................. Daniela Ruah
LAPD Detective Marty Deeks..............Eric Christian Olsen
Tech Operator Eric Beale.........Barrett Foa
NCIS Intelligence Analyst Nell Jones.......................... Ren�e Felice Smith

RECURRING CAST:

Lauren Hunter............................. Claire Forlani

GUEST CAST:

Heather Marcum...................... Heidi Marnhout
Shawn Calder.......................... Nathan Gamble
Patricia Michaels............................. .Anne Son
Elizabeth Smith.......................... .Bridget Regan
Dennis Calder .............................. Jordan Belfi
Nicholas Delamico.................... .Bradley James
Salesperson .................. Stephan Smith Collins
Receptionist............................. .Elizabeth Bond
Assistant..................................... Amy Rasimas

WRITTEN BY: R. Scott Gemmill

DIRECTED BY: Dennis Smith

RATING: To Be Announced