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 (season 14) CSI: Crime Scene Investigation (season 14) The fourteenth season of "" premiered on September 25, 2013 on CBS, and ended on May 7, 2014. The season stars Ted Danson and Elisabeth Shue. The series's 300th episode aired during the season, with Marg Helgenberger guest starring in the landmark episode in a series of newly recorded "flashbacks" to a case that occurred in the time frame of the first season. Due to the leave of absence taken by George Eads following his altercation with a writer, he appears only in the first three episodes of the season, under the pretext of