CSI: Crime Scene Investigation (season 13) Las Vegas ("In Vino Veritas"), Phillips heads to a high school reunion ("Dead of the Class"), and an investigation into a series of Dante's Inferno killings bring the CSIs face-to-face Black Sabbath ("Skin in the Game"), before jeopardizing the life of one investigator. In episode thirteen of the season, "CSI" staged a two-part crossover with its spin-off show "" in which Gary Sinise marked his first appearance in "CSI" and as his "CSI: NY" character Mac Taylor; cast member Ted Danson subsequently appeared in the "CSI: NY" portion of the story. Former cast member William Petersen also returned as Gil
Pilot (CSI: Crime Scene Investigation) mold of his own hand. Grissom realizes that the suspect used one of these hands. Nick Stokes arrives at his crime scene and meets a man who was drugged by a hooker and had his possessions stolen while he was unconscious. Nick notices a discoloration around the man's mouth that he thereafter ties up with another caseload, Kristy Hopkins, who accidentally crashes her car when she got knocked unconscious while driving. He notices the same discoloration around her nipples and realizes that she put scopolamine on her nipples to knock out her victims and steal their possessions. Catherine and Warrick