After an emotional season opener of "CSI: Crime Scene Investigation", the show trades in the lost of Warrick Brown with the return of Jorja Fox as Sara Sidle. The preview of the October 16 episode, shows among others Sara in the arms of Grissom who says "Why don't you stay".
After the closure of May's season where Warrick was shot in the chest, it was unveiled in episode 9.01 that he didn't pull through. Despite the tragedy, the team move on with their works in the episode called "Happy Places", with Nick and Catherine investigating why a woman who was about to be married would have taken a swan dive off of her balcony.
Also Grissom investigates the brutal murder of a woman found in an alley. The investigation gets tougher when Grissom discovers that her two-year-old was with her when she was murdered. Meanwhile, Sara visits an old friend who first appeared in 16th episode of season 1, "Too Tough To Die".