Marg Helgenberger, who graced "CSI" for so many seasons, will be back October for one night only - for the big 300th. CBS has announced and herewith the details:
CSI: CRIME SCENE INVESTIGATION will celebrate its 300th milestone episode with original cast member Marg Helgenberger returning as Catherine Willows to help solve a cold case that has haunted the team for 14 years, Wednesday, Oct. 23 (10:00-11:00 PM, ET/PT) on the CBS Television Network. It’s back to the beginning for CSI’s 300th episode, when the team investigates a homicide in the home of a reclusive former casino mogul who was a suspect in a similar crime in 2000. The CSI team recalls who they were and where they were in order to solve the cold case.