(NOTE TO EDITORS: The following episode of NUMB3RS has been substituted for the one previously scheduled for Feb. 22) --

A SECRET DON WAS KEEPING IS REVEALED AFTER A PARTICIPANT IN THE WITNESS PROTECTION PROGRAM IS GUNNED DOWN IN HER HOME, ON A REBROADCAST OF "NUMB3RS," FRIDAY, FEB. 22

James Morrison ("24") Guest Stars As Commander Chris Frederickson

"In Security" - Don feels responsible for the death of a participant in the Witness Protection Program after she is gunned down in her home, on a rebroadcast of NUMB3RS, Friday, Feb. 22 (10:00-11:00 PM, ET/PT) on the CBS Television Network. James Morrison guest stars. (Originally broadcast 11/2/07)

SERIES REGULARS:

Don Eppes: Rob Morrow
Charlie Eppes: David Krumholtz
Alan Eppes: Judd Hirsch
David Sinclair: Alimi Ballard
Larry Fleinhart: Peter MacNicol
Megan Reeves: Diane Farr
Amita Ramanujan: Navi Rawat
Colby Granger: Dylan Bruno

RECURRING CAST:

Special Agent Liz Warner: Aya Sumika

GUEST CAST:

Commander Chris Frederickson: James Morrison
U.S. Marshal Tricia Yaegger: Erika Alexander
Leah Wexford: Jennifer Riker
Steven Wexford: Kevin G. Schmidt
Alfred McGurn: Peter Onorati
Benny Natale: Michael Cavalieri
Zeke Gibbs: Chandler Adrian Parker
Brother Theo: Kenneth Dolin
Female Undergrad: Michelle Mulitz

WRITTEN BY: Sean Crouch

DIRECTED BY: Steven Gyllenhaal

RATING: TV14-LV