CSI: Crime Scene Investigation physical evidence to solve murders. The team is originally led by Gil Grissom (Petersen), a socially awkward forensic entomologist and career criminalist who is promoted to CSI supervisor following the death of a trainee investigator. Grissom's second-in-command, Catherine Willows (Marg Helgenberger), is a single mother with a cop's instinct. Born and raised in Las Vegas, Catherine was a stripper before being recruited into law enforcement and training as a blood-spatter specialist. Following Grissom's departure during the ninth season of the series, Catherine is promoted to supervisor. After overseeing the training of new investigator Raymond Langston (Fishburne), Willows is replaced by
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