The CSI team must investigate one of their own when Langston is accused by a former colleague of being part of the Dr. Jekyll murders, on part one of a two-part season finale of CSI.
Quest roles:
Jorja Fox(Sara Sidle), David Berman(David Phillips), Archie Kao(Archie Johnson), Marc Vann(Conrad Ecklie), Jeff Perry(Vince Grady), Liz Vassey(Wendy Simms), Bill Irwin(Nate Haskell), Scott Cohen(Aaron Custer), Monet Mazur(Heidi Custer), Larry Mitchell(Officer Mitchell), David Boswell(Lou Brennan), Ryan Mercier(Craps Player), Susan Rhea Lynch(Female Clerk)