DON AND HIS TEAM MUST STOP A SUSPECT WHO INTERFERED WITH CRUCIAL COUNTER-TERRORISM DRILLS IN LOS ANGELES, ON "NUMB3RS," FRIDAY, NOV. 4

Scott Cohen ("Street Time") and John Heard ("Locusts," "Prison Break") Guest Star

"Soft Target" -- Don and his agents must uncover who interfered with a counter-terrorism exercise before deadly results occur, on NUMB3RS, Friday, Nov. 4 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Andy Wolk directed the episode written by Don McGill.

Scott Cohen ("Street Time") guest stars as James Grace, Homeland Security's L.A. Asst. Bureau Chief, who reports to Peter Houseman, played by John Heard ("Locusts," "Prison Break").

A week-long series of counter-terrorism exercises are put to the test by Homeland Security in Los Angeles, but when the first one is violated by someone who releases a potentially lethal gas in the subway system, Don and his team are called in to find the culprit. Further investigation leads them to an unlikely suspect trying to prove a point about the city's lack of preparedness.

Don Eppes: Rob Morrow
Charlie Eppes: David Krumholtz
Alan Eppes: Judd Hirsch
David Sinclair: Alimi Ballard
Larry Fleinhardt: Peter MacNicol
Megan Reeves: Diane Farr
Amita Ramajuan: Navi Rawat
Colby Granger: Dylan Bruno
Val Eng: Christina Chang
James Grace: Scott Cohen
Peter Houseman: John Heard
Roger Holstein: Dylan Kenin
Jennifer Nash: Melinda Page Hamilton
Glen Nash: Scott William Winters
Bree Eng: Lynn Chen

RATING: To Be Announced