After Warrick is shot in a Las Vegas alley, the CSI team comes together to deal with the aftermath.

A man accused of murdering his wife and co-workers leads the CSIs on a wild ride through a busy casino, eventually barricading himself and a hostage in a casino hotel…

The CSIs come across an abandoned military compound being used by a small cult. The CSIs grow suspicious when they see that a mass suicide has taken place, but only…

A man convicted of arson and the murder of his wife and child seeks assistance from Grissom to help prove his innocence. Meanwhile, Catherine and Nick investigate the underground world…