CSI: Crime Scene Investigation (season 5) of a bear ("Unbearable"), and a murder involving sports betting ("Big Middle"). The risk of losing of one of their own, however, allows Ecklie and Grisson to set aside their differences, both personal and professional, and reunite the team once again ("Grave Danger"). <onlyinclude></onlyinclude> 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
CSI: Crime Scene Investigation (season 12) a house ("Stealing Home"), a crippling blackout ("CSI Unplugged"), a murder at an Alice-in-Wonderland style wedding ("Malice in Wonderland"), and a race-truck explosion ("Dune and Gloom"). Later, the troubles continue for the CSI's personal lives, as Finn and D.B. struggle to come to terms with their past relationship, Ecklie is gunned down, Nick leaves CSI, and the Crime Lab is placed under the supervision of an outside agency ("Homecoming"). Ted Danson and Elisabeth Shue join the main cast, replacing Laurence Fishburne, and the outgoing Marg Helgenberger, respectively. Elisabeth Harnois becomes a series regular. Episode 13 of the season is the