Amid the neon lights and long shadows, dark threats lurk in Sin City. In the final season of CSI: VEGAS, Maxine Roby (Paula Newsome) leads her brilliant team of crime scene investigators, including Catherine Willows (Marg Helgenberger), as they use cutting-edge science to solve baffling mysteries. Chief among them: who framed their colleague, Joshua Folsom, for a gruesome murder? The most daunting and dangerous cases are coming, and the team will have to deploy the latest forensic techniques to preserve and serve justice in Sin City.