While Langston testifies in the trial of a respected Congressman, new evidence sends the CSIs back to the lab to reopen the investigation.

A band of vicious bikers is given the go-ahead to take down one of their own when it's discovered that the guy is an undercover cop.

Two secretaries on holiday from Arizona attempt to steal a man's wallet and ATM pin number in a scam, and wind up dead in different locations. Meanwhile, the CSI team also investigates a disturbing medical mystery involving the dumping of human organs in a wildlife refuge.

Catherine and Detective Vartann are thrown together in a hotel room for 24 hours as they stake out a duo making drugs in the room next door. Meanwhile, Nick and Langston work a case that involves a fetish which has become big business in Vegas.

Als der Vater eines vor Jahren verschwundenen Mädchens ermordet aufgefunden wird, ist den Ermittlern schnell klar, dass sie zur Lösung des Falles auch in der Vergangenheit stöbern müssen.

While investigating the murder of a convicted ex-cop, the CSIs stumble upon a list in his prison cell with names of several individuals he believed might have been his wife's true killer.

Catherine's friend Laura's mogul husband Mark has a lot to hide behind his successful international corporation, and he's hired a crack team of assassins to carry out the murders of anyone who might be aware of what he's doing, and that includes Laura's lawyer and Laura herself.

When a photo of a dead college student starts trending on the Internet, the team steps in to investigate.

The CSIs arrive at their favorite diner only to discover a gruesome crime scene with eight dead victims and a lot of questions

The CSI team investigates the death of a reverend who was killed at the grave site of former CSI Warrick Brown.

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 (2).

When the CSIs find a body near a forest reserve, they discover what might be a serial killer and his bizarre lair.

The CSI team investigate a murder at a high stakes poker game.

The CSI team is called in to investigate the stabbing of a couple found at a local motel that is reminiscent of two incidents that occurred in the same room.

Gabriel Ortiz, ein Geschäftsmann aus Las Vegas und Freund von Dr Robbins bittet das Team um Hilfe, den Tot seiner Tochter näher zu untersuchen. Dazu müssen Robbins und Nick nach Arquero fahren.

When a teen opens fire in a police station, Russell is taken hostage.

Sara und Greg werden isoliert, weil sie an einem Tatort Kontakt mit einem Opfer hatten, das an dem tödlichen Ibare-Virus litt. Bei der Dekontamination des Tatorts werden alle DNA-Spuren vernichtet.

The CSI team find themselves taking a look into the kinky world of “rubber dolls” as they investigate the murder of a man stabbed in an alley.

Nach 15 Jahren und 337 Folgen verabschiedet sich die Hitserie mit einem großen Finale in Spielfilmlänge das zu einem großen Ehemaligentreffen wird: Gil Grissom (William Peterson), in den ersten neun Staffeln Leiter des CSI, und seine langjährige Kollegin Catherine Willows (Marg Helgenberger) kehren nach Las Vegas zurück, um das aktuelle CSI-Team zu unterstützen: Selbstmordattentäter suchen die Casinostadt heim.