CSI: Crime Scene Investigation (season 7) CSI: Crime Scene Investigation (season 7) The seventh season of "" premiered on CBS on September 21, 2006 and ended May 17, 2007. The series stars William Petersen and Marg Helgenberger. Catherine heads to a small town in Nevada ("Leaving Las Vegas") as Grissom and Sara continue their affair ("Living Doll"), in the seventh season of "CSI". Supervised by Grissom and Willows, the Las Vegas Crime Scene Investigators face both personal and professional challenges as Grissom says goodbye, and new CSI Michael Keppler joins the team ("Sweet Jane"), as they investigate the bizarre, the brutal, and the unprecedented, including a
CSI: Crime Scene Investigation occasion, been accompanied by Electric Light Orchestra's "Mr. Blue Sky". This song was first used in the season-seven episode "Lab Rats", and last used during season 10's "Field Mice". From "CSI", CBS produced a franchise starting in 2002 with a spin-off entitled "". Set in Miami, Florida, and starring David Caruso and Emily Procter, "Miami" later launched "" in 2004. Starring Gary Sinise, Sela Ward, and Melina Kanakaredes, "NY" was set in New York City and was based upon the idea that "Everything is Connected". In 2015, a fourth "CSI" series, entitled "", starring Patricia Arquette and Ted Danson, was