NCIS PARTNERS WITH THE NATIONAL SECURITY AGENCY (NSA) WHEN THE KIDNAPPING OF A SOFTWARE GENIUS THREATENS NATIONAL SECURITY, ON A REBROADCAST OF "NCIS: LOS ANGELES," TUESDAY, JULY 31

"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 a rebroadcast of NCIS: LOS ANGELES, Tuesday, July 31 (9:00-10:00 PM, ET/PT) on the CBS Television Network. (Originally broadcast 9/27/11.)

SERIES REGULARS:

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)
Ren�e Felice Smith (NCIS Intelligence Analyst Nell Jones)

RECURRING CAST:

Claire Forlani (Lauren Hunter)

GUEST CAST:

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

WRITTEN BY: R. Scott Gemmill

DIRECTED BY: Dennis Smith

RATING: To Be Announced