GRISSOM AND HIS TEAM SEARCH FOR A MURDERER AT A CONVENTION FOR PLUS-SIZED PEOPLE, ON "CSI: CRIME SCENE INVESTIGATION," THURSDAY, FEB. 24

"Big Middle" -- The CSIs search for a murderer at a convention for overweight adults, on CSI: CRIME SCENE INVESTIGATION, Thursday, Feb. 24 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Bill Eagles directed the episode from a story by Dustin Lee Abraham and a teleplay by one of the series' executive producers, Naren Shanker, and Judith McCreary.

When the evidence suggests the victim died from asphyxia due to a large object on his chest, Grissom and his team track the killer to an APAPSP convention, "Association to Promote Acceptance of Plus-Sized People." Meanwhile, a large sum of cash and betting slips are found near a dead body on the outskirts of Vegas, leading Catherine's team into the world of high-stakes gambling.

Gil Grissom: William Petersen
Catherine Willows: Marg Helgenberger
Warrick Brown: Gary Dourdan
Nick Stokes: George Eads
Captain Jim Brass: Paul Guilfoyle
Sara Sidle: Jorja Fox
Greg Sanders: Eric Szmanda
Dr. Robbins: Robert David Hall
David Phillips: David Berman
David Hodges: Wallace Langham
Detective Vartan: Alex Carter
Officer Metcalf: Joseph Patrick Kelly
Councilman Gabe Miller: John Furey
Mitch Urbana: Steve Lawrence
Scott Varney: Craig Saslow
Kelvin Russell: Lee Burns
Sports Book Manager: Melora Hardin
Lou Barnes: Claude Shires
Cesar Dabo: Patrick Kilpatrick
Brenda Morgan: Kinna McInroe
Jill Paisley: Tara Karsian
Regina Kern: Debra Christofferson
Chair Dancer #1: Lisa Brounstein
Oddsmaker #1: Michael Edwin
Oddsmaker #2: Jon Cellini
ER Surgeon: Patricia Heller

RATING: To Be Announced