WHEN TWO TRAINS COLLIDE, DON AND HIS TEAM MUST FIND A WAY TO RESCUE TRAPPED PASSENGERS AND INVESTIGATE POSSIBLE SABOTAGE OR TERRORISM LINKED TO THE CRASH, ON "NUMB3RS," FRIDAY, NOV. 21

"Thirty-Six Hours" - When a passenger train collides with a freight train carrying toxic chemicals, Don, Charlie and the team begin to investigate if foul play was involved on NUMB3RS, Friday, Nov. 21 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

SERIES REGULARS:

Don Eppes: Rob Morrow
Charlie Eppes: David Krumholtz
Alan Eppes: Judd Hirsch
David Sinclair: Alimi Ballard
Larry Fleinhart: Peter MacNicol
Amita Ramanujan: Navi Rawat
Colby Granger: Dylan Bruno
Nikki Betancourt: Sophina Brown

GUEST CAST:

James Malin: Larry Clarke
Ralph Ramirez: Johnny Chavez
William Ramirez: Philip Pinto
Estella Ramirez: Lourdes Benedicto
Jeffrey Knight: Antonio Fargas
Richard Cory: Randall Arney
Roman Markovius: Tony Amendola
Cutty Nagim: Kahlil Joseph
Tim Hamer: Mark Pellegrino
Doug Abbott: Tavis Danz
Ed Clark: Robert Neary

WRITTEN BY: Julie H�bert

DIRECTED BY: Rod Holcomb

RATING: To Be Announced