Plot

A spa weekend for Sara, Finlay and Morgan turns into a murder investigation and missing persons case when Finlay disappears, as the CSI team must piece together what happened in detail to find her.

Car trouble forces the CSI girls, en route to a spa, to spend the night in a desert town's only bar. Finaly eagerly leaves to flirt with hunky mechanic Darryl Walsh, but turns down full intimacy, he pulls a knife to force her, she stabs him in the ensuing struggle. Sheriff Gardner reluctantly allows forensic assistance from Nick and Greg and HQ backup in the investigation, which shows that Walsh's garage is the center of drug business and serial drug rape murders, his local accomplices prove dangerous.—KGF Vissers

Sara, Finn and Morgan are happy since they will have a weekend off. Morgan invites her friends to go with her to Reno, since she has a suite at a SPA and they go in Finn's car. However, the water pump breaks down on the road and the mechanic Darryl Walsh tells them that he will replace it only on the next day. He gives a ride to them to Larkston, where they stay in a motel and go to a karaoke bar. Finn dances with Darryl and leaves the bar with him. They make out and she finds that he is married; then Finn rejects him. But Darryl tries to rape Finn forcing with a knife, but she subdues, takes his knife and stabs him. She runs to the bar and tells her friends what happened. When they arrive, Darryl's body is missing and they process the location. Sheriff Owen Gardner arrives and believes they are tampering the scene. Finn is arrested, but Sara and Morgan continue the investigation. Soon they find that Darryl has a hydroponic marijuana plantation, with a chop-chop of cars in a barn and a mummified body inside the hood of a car. Now Finn is released to help the investigation.—Claudio Carvalho, Rio de Janeiro, Brazil