When a miner's daughter is assaulted in the local coal mine, she utters only one word, leaving the town's sheriff baffled. The event quickly spirals out of control, impacting the entire town.

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