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 (season 8) main cast member in a starring role. Wallace Langham joined the main cast. Only 11 episodes had been completed and aired before the 2007 Writers Guild of America strike. Only six more episodes were made after the strike, for a total of only 17 episodes. Some international broadcasters only showed the first part of the crossover "Who and What" because "Without a Trace" did not air (or aired older seasons) at the time. <onlyinclude></onlyinclude> CSI: Crime Scene Investigation (season 8) The eighth season of "" premiered on CBS on September 27, 2007 and ended May 15, 2008. The season stars