CSI: Vegas opens on a brand-new chapter in Las Vegas. When the Crime Lab's legacy and future are called into question, a brilliant new team of investigators led by Maxine Roby (Paula Newsome) must enlist the help of old friends, Gil Grissom (William Peterson) and Sara Sidle (Jorja Fox). This combined force will deploy the latest forensic techniques to do what they do best - follow the evidence - in order to preserve and serve justice in Sin City and uncover the truth.