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 widescreen transfer with DTS-HD Master Audio 7.1 surround sound. Extras include commentaries, featurettes and BD-Live functionality. Season 8 was released on Blu-ray on May 29, 2009, in Region B. "CSI" has also been released as a series of mobile games. In Fall 2007, CBS teamed up with game developer Gameloft to bring "CSI" to mobile phones. The first of the series to be published was "". The game features actual cast members such as Alexx Woods and Calleigh Duquesne who are trying to solve a murder in South Beach with the player's assistance. The game is also available for download