Luck is on the side of most during the incident at the Four Kings Casino and Hotel, when the simmering tension between two rival biker gangs suddenly boils over into all-out violence -- miraculously, there are only two fatalities despite the hundreds of rounds fired on the casino floor. Called to an out-of-control crime scene -- located outside Las Vegas in the legendary town of Boot Hill -- forensic investigators Gil Grissom, Catherine Willows, Nick Stokes, and Sara Sidle quickly discover that the two casino shootout victims were no innocent bystanders: one was the powerful leader of the Predator gang, and the other a luckless card dealer who may have borne witness to an elaborately staged execution. Meanwhile, back in the glitter of Sin City, CSIs Warrick Brown and Greg Sanders have their own hands full, as the dark side of this desert metropolis is about to wreak havoc on the two investigators via a seemingly endless series of crimes. . . .

What happens when a reality TV series gets a true dose of reality? A staged prank for a hit scare show has gone horribly wrong with an actor now dead and production halted indefinitely. As the graveyard shift of Sin City’s best crime scene investigators—including Catherine Willows, Ray Langston, Nick Stokes, Sara Sidle, and Greg Sanders— digs deeper behind the scenes, more questions than answers pile up: Was the botched prank’s set-up simply a case of carelessness on the producers’ part resulting in a tragic accident, or did someone really orchestrate an elaborate scheme for revenge and murder?

The machinations of a new supervisor may have altered Gil Grissom's team of skillful CSIs, as Catherine Willows, Nick Stokes, and Warrick Brown are reassigned from the graveyard shift to the swing shift. That doesn't mean, however, that their paths will never cross. During the course of their separate investigations, the teams must unite again to investigate two distinct murders -- atrocities that are oddly aligned as they share much of the same collective evidence. Despite the different M.O.s, the CSIs are uncovering two wildly imperfect crimes that could possibly add up to an almost perfect one...

A package with no return address is delivered to the University of Nevada's anthropology department, and a genuine shrunken head is inside. At first, Gil Grissom and his team consider it a grisly relic, but soon evidence points out that it is, in fact, a modern-day murder. Original.

Based on the Emmy Award-winning TV series, this edge-of-your-seat thriller follows the savvy and remarkable team of forensic investigators led by veteran Gil Grissom as they use the latest cutting-edge technology to track down a mysterious killer from the past. Ten years ago, Las Vegas was terrorized by a vicious and bloodthirsty serial killer responsible for nearly half a dozen brutal murders. But after two years of keeping the city in a panic, the killer mysteriously vanished and has not been heard from…until now. Gil Grissom and his CSI team are called in to investigate a homicide that perfectly fits the notorious criminal’s modus operandi. But all hell breaks loose when a reporter made famous by the original cases receives a letter from someone claiming to be the very same killer—but he insists that he had nothing to do with the latest slaying. Now the CSI team must stop someone who may be a copycat killer from striking again, even as a murderer from the past continues to evade capture, and isn’t taking too kindly to rivals.