CSI: Crime Scene Investigation (season 5) CSI: Crime Scene Investigation (season 5) The fifth season of "" premiered on CBS on September 23, 2004 and ended May 19, 2005. The series stars William Petersen and Marg Helgenberger. Greg begins his journey from a lab rat to a field mouse, as the Las Vegas Crime Lab faces a personnel overhaul ("Ch-Ch-Changes"), during the fifth season of "CSI". The team's final days together are plagued with more investigations into the insane and the unusual, including the discovery of an "alien" corpse just outside the boundary of Area 51 ("Viva Las Vegas"), a body washed up in a thunderstorm
Kitty (CSI: Crime Scene Investigation) boxset. The episode had 9.95 million viewers. CBS confirmed that the episode also broke the Guinness World Record for largest TV simulcast drama episode, airing in 171 countries, including digital streaming on CBS All Access. Kitty (CSI: Crime Scene Investigation) "Kitty" is an episode of . Kitty introduced FBI Agent Avery Ryan from which this episode served as the backdoor pilot of the series. Despite being credited Jorja Fox and Jon Wellner who portray Sara Sidle and Henry Andrews do not appear in this episode (although the latter does appear in a deleted scene). The episode begins with a house's