Anthony E. Zuiker

Facing an existential threat that could bring down the Crime Lab, a brilliant team of forensic investigators must welcome back old friends and deploy new techniques to preserve and serve justice in Sin City.

An explosion inside a casino brings Catherine Willows back to Las Vegas to investigate. And when the crime is tied to Lady Heather, Gil Grissom is brought back as well to aid the investigation. This is a 2 part TV Special. Series Finale