CSI: Crime Scene Investigation (season 14) is taken hostage ("The Fallen"), the team track a cannibal ("Consumed"), and Brass has to make a decision when his daughter attempts suicide ("Dead In His Tracks"). Avery Ryan, meanwhile, heads to Las Vegas to work alongside the CSI team when a casino owner's wife is killed in a cyber-related case ("Kitty"). Paul Guilfoyle, who plays Jim Brass, left the series at the end of the 14th season. Marg Helgenberger guest stars, Patricia Arquette makes her franchise debut as Avery Ryan. <onlyinclude></onlyinclude> CSI: Crime Scene Investigation (season 14) The fourteenth season of "" premiered on September 25, 2013 on CBS,
CSI: Crime Scene Investigation (season 15) For that, and so much more, I am forever grateful." Don McGill became the lone showrunner for season fifteen. Starting with this season, the show moved to Sundays at 10:00 p.m, except for episode 16 which aired on January 27, 2015. <onlyinclude></onlyinclude> The season airs simultaneously on CTV in Canada. It premiered on Channel 5 in the United Kingdom on January 24, 2015. CSI: Crime Scene Investigation (season 15) The fifteenth and final season of "" premiered on CBS on September 28, 2014, and ended on February 15, 2015. The season stars Ted Danson and Elisabeth Shue. Finlay finds her