Facing an existential threat that could bring down the entire crime lab and release thousands of convicted killers back onto the neon-lit streets of Las Vegas, a brilliant new team of investigators led by Maxine Roby must enlist the help of old friends Gil Grissom, Sara Sidle and David Hodges. 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. While there have been numerous spin-offs within the “CSI” franchise, this will serve as the series first sequel.