When a girl is shot and killed at a large rave in the desert, the CSI team has to search for clues, find her missing friend and bring the killer to justice.
When a K-9 is blamed for the death of his partner, the CSI team discovers there's more to the case. Meanwhile, Finlay and Morgan investigate the death of a high-profile divorce lawyer with a lot of enemies.
When eight bodies are found in what appears to be a meteor site in the middle of the desert, CSI Finlay recognizes one of the casualties, prompting her to revisit her past.
The CSI team lends a hand to local law enforcement on the strip with several arrests until a John Doe is found in car. Also, things become personal for Captain Brass when he discovers some facts about his daughter.
When five people are killed in a small plane crash a mile off the Vegas strip, the CSI team is called to investigate. Also, Sara feels the strain of having a long-distance relationship with Grissom when a former lover of hers is involved with the crash investigation.
When CSI Mac Taylor decides to surprise his girlfriend in Vegas, he discovers she’s missing and asks his friend D.B. Russell for help.
The crossover concludes on CSI: New York S09E15 Seth and Apep (II).
The CSIs investigate the demise of a famous Cuban singer’s sister who’s in town as part of a U.S. tour. Meanwhile, Hodges begins to get cold feet at the prospect of marrying his Italian bombshell girlfriend.
Sara is a lead suspect in an investigation after a brief encounter with another man in which she was the last person to see him alive. Also, her separation from Grissom begins to take a toll.
At his wife's urging, David reluctantly attends his high school reunion -- which becomes a crime scene when the bitchy former high school queen is found dead in a back room.
The CSI team investigates a popular spiritual retreat when a body is found floating in a mud bath. Meanwhile, Hodges questions his marriage plans to Elisabetta.
