 The CSI team undertakes two investigations. Nick and Sara look into the apparent suicide of a fraternity pledge but the autopsy suggests something else and hazing is suspected. Grissom and Catherine look into the possible drowning of a missing woman when local fishermen find a severed leg in Lake Mead. The woman was having an affair and suspicion immediately falls on the boyfriend, with tragic results. Meanwhile, Warrick is again pressured by a crooked judge, this time to compromise evidence.