Marty Rackham

Ray reluctantly accompanies Debra to a high school reunion where he is unmasked as a former nerd. He is later shocked to learn that Debra was one of the cool kids who used to throw him into the girls' toilets.

Las Vegas is the venue for a middleweight championship bout between two bitter rivals. When the losing boxer is pronounced dead, the CSI team is called to the scene, with Grissom suspecting foul play. Elsewhere, Catherine investigates an outbreak of gang violence and Nick looks into a robbery at a hotel jewellery store.

Ezri must work with one of Dax's previous incarnations, the homicidal Joran, to solve a series of murders.

While Sorrenson and Sipowicz are involved in a kidnap investigation, the rest of the squad search for the killer of a Chinese food delivery man.