(NOTE TO EDITORS: The following episodes of CSI: CRIME SCENE INVESTIGATION have been substituted for the ones previously scheduled for the dates indicated.)

FOUR SEPARATE FATAL INCIDENTS HAVE THE CSI GRAVEYARD SHIFT USING ALL OF THEIR PERSONNEL TO INVESTIGATE THE CRIMES, ON A REBROADCAST OF THE FIFTH-SEASON PREMIERE OF "CSI: CRIME SCENE INVESTIGATION," THURSDAY, AUG. 18

Reiko Aylesworth ("24") and French Stewart ("3rd Rock from the Sun") Guest Star

"Viva Las Vegas" -- A wild night in Las Vegas has the CSIs simultaneously investigating four fatalities, on a rebroadcast of the fifth-season premiere of CSI: CRIME SCENE INVESTIGATION, Thursday, Aug. 18 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Danny Cannon directed the episode written by Carol Mendelsohn & Danny Cannon, two of the series' executive producers. (Originally broadcast 9/23/04)

Reiko Aylesworth ("24") guest stars as DNA tech replacing Greg Sanders, who starts his new position in the field. French Stewart ("3rd Rock From the Sun") guest stars as a suspect in Sara's and Nick's investigation.

Greg Sanders' first day in the field has him assisting Grissom's investigation of a fatal nightclub shooting. Meanwhile, Catherine probes into the death of a stripper found in a Las Vegas hotel suite. Across town, Warrick is called to an apartment building to investigate possible foul play in the death of a man found electrocuted in his bathtub. Lastly, Nick and Sara investigate a body found buried wearing an alien costume near Area 51. Back in the lab, Greg Sanders' replacement, Chandra, (Aylesworth), is overwhelmed by the fast-paced world of the CSIs.

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
Detective Vartan: Alex Carter
David Phillips: David Berman
Detective Cavaliere: Jose Zuniga
Jacqui Franco: Romy Rosemont
Hodges: Wallace Langham
Chris Bezich: Nicholas Lea
Archie Johnson: Archie Kao
Manny Brazil: John L. Adams
Space: Vincent Ward
Young Cocktail Waitress: Amanda Lockwood
Chandra Moore: Reiko Aylesworth
Carl Johnson: Scoot Klace
Raven: Justine Brandy
Crystal: Marina Black
Super: Tony Amendola
Female Tenant: Michelle Haner
Lance Frazer: Justin Kennedy
Detective Travis: Jonathan Penner
Assistant Manager: Allen Fawcett

RATING: TV14-LSV