THE CSI TEAM INVESTIGATES WHEN A FAMILY OF FOUR IS MURDERED IN THEIR OWN HOME, BUT THE BODIES ARE MISSING FROM THE CRIME SCENE, ON "CSI: CRIME SCENE INVESTIGATION," THURSDAY, OCT. 20

"Gum Drops" -- The CSI team suspects an entire family has been murdered, but cannot prove it until they find the victims' bodies, on CSI: CRIME SCENE INVESTIGATION, Thursday, Oct. 20 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Richard J. Lewis directed the episode from a script by Sarah Goldfinger.

When the blood evidence suggests only three people were killed, Nick is the only one on the CSI team that believes the fourth family member, the young daughter, is still alive. Now, it's a race against time to find the perpetrators who may lead the CSIs to a possible survivor.

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
Sophia Curtis: Louise Lombard
Hodges: Wallace Langham
Archie Johnson: Archie Kao
Cassie McBride: Mary Matilyn Mouser
Jeremy McBride: Hunter Parrish
Sheriff Brackett: Michael McGrady
Luke Daniels: Chase Ryan Jeffrey
Dr. Parker: Scott Paulin
Sage: Melora Walters
Elliot Perolta: Mark Pellegrino
Mark Horvatin: Matt Funke
Mark Horvatin Sr.: Don Michael Paul
Mrs. Jill Locke: Jennifer Savidge
Peter: Trever O'Brien
Mr. Daniels: Lindsey Ginter

RATING: To Be Announced