Release

<p>DON AND HIS TEAM INVESTIGATE A SERIES OF FIRES IN LOS ANGELES THAT ARE LINKED TO A RADICAL ENVIRONMENTAL GROUP, ON &quot;NUMB3RS,&quot; FRIDAY, DEC. 16 </p>

"Bill Nye the Science Guy" Guest Stars

"Scorched" -- Don and his team must find the serial arsonist responsible for an innocent man's death, on NUMB3RS, Friday, Dec. 16 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Noberto Barba directed the episode written by Sean Crouch.

"Bill Nye the Science Guy" guest stars as Professor Waldie who helps Charlie and Larry recreate a backdraft in Cal Sci's combustion lab.

When a fire destroys an SUV dealership and kills a young salesman, Don and his team are called in as there is evidence the fire could be linked to a group of radical environmentalists. With the help of Cal Sci's Professor Waldie, Charlie is able to "fireprint" the fire which helps the FBI determine who is responsible.

Don Eppes Rob Morrow
Charlie Eppes David Krumholtz
Alan Eppes Judd Hirsch
David Sinclair Alimi Ballard
Larry Fleinhardt Peter MacNicol
Megan Reeves Diane Farr
Colby Granger Dylan Bruno
Noah Stevens Loren Dean
Alex Dewitt Ian Unterman
Bianca Styles Sophina Brown
Ethan Blake Bashoff
Jake A.J. Trauth 

Bill Waldie     Bill Nye
Stendhauser     Susan Beaubain
Female Student  Rosalie Ward
Salesman        David O. Katz
Professor       Sean Smith

RATING: TVPG-LV

Photos now available at www.cbspressexpress.com

Official CBS website: http://www.cbs.com/primetime/numb3rs/

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