"LD50" - A crime scene poses a national security risk when the LA team discovers the location was used to create a deadly toxin which is now missing, on NCIS: LOS ANGELES, Tuesday, Feb. 2 (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

NCIS Special Agent

  Dominic Vail  .................... Adam Jamal Craig

Tech Operator

Eric Beal.............................Barrett Foa

GUEST CAST:

Esther Balmore.................... Julianna McCarthy

Jacobus Troyger .................. Andrew Connolly

Dallas............................................... Jr Bourne

Gage Jenson............................ Dameon Clarke

Simon Amputuan............................. Burt Bulos

Blond Man...................................... Bru Muller

Sadiki Hassan................. Vachik Mangassarian

DIRECTED BY:  Jonathan Frakes

WRITTEN BY:  Speed Weed and Scott Gemmill

GENRE:  DRAMA, CRIME, MYSTERY

RATING:  TV14-LV

On the Web:  http://www.cbs.com/primetime/ncis_los_angeles/

Photos are available at http://www.cbspressexpress.com/