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
CSI: Crime Scene Investigation by the online forum Your Tax Dollars At Work. Many of its 19,000 members donated to the cause, collecting over $8,000 for gifts and stunts targeted at CBS executives and "CSI"'s producers and writers. The stunts included a wedding cake delivery to Carol Mendelsohn, 192 chocolate-covered insects with the message "CSI Without Sara Bugs Us" to Naren Shankar, and a plane flying several times over the Universal Studios of Los Angeles with a "Follow the evidence keep Jorja Fox on CSI" banner. Other protests included mailing the show's producers a dollar, to save Fox's contract "one dollar at a time".