The son of a Las Vegas mogul is found dead, but the CSI team soon discovers that the crime scene has been staged, and they are looking for the guilty.

The CSI team investigates when a coed, who was having an affair with a married professor, disappears from her college dormitory room without a trace.

Grissom investigates the death of a construction worker plummeting to his death and Catherine and Nick investigate the death of a teenage boy.

The class clown form the local high school is found murdered on campus. Sara and Nick investigate a case involving a severely decomposed body.

Grissom, Sara and Warrick scour a bloody apartment. Nick and Catherine are confronted with a scuba diver found dead on a tree near Lake Mead.

The CSIs are called to a desert crime scene. Warrick and Catherine investigate the death of a casino spa customer under suspicious circumstances.

The CSIs investigate the suspicious death of a rare book restorer. Sara and Catherine investigate the fatal collision of a train and an SUV.

A naked young woman is found dead in a playground sandbox. Meanwhile Sara and Warrick investigate a robbery/shooting at a checking cashing business.

Robbers knock over the high stakes table at a casino, leaving eight wounded and one dead. Catherine and Sara investigate a convenience store homicide.

Warrick is put in charge of a graveyard investigation of a con job, which escalates into a murder with one serious and shocking suspect.

When a dead man is found in the elevator of a hotel, both the victim’s wife and his personal assistant have a lot of explaining to do to the CSI team.

Two sisters are found murdered inside pipes at a construction site. Catherine and Nick investigate what looks like the accidental shooting death.

Vicious killer Paul Millander, the one who got away, is back, and he already his next victim in mind – Grissom. This time he adds a twist to his act.

A determined kidnapper orders Catherine to accompany a man who must deliver a million dollar ransom if he ever wants to see his mistress alive again.

The CSI team gets involved in a case of suspected sexual abuse of a child.

A hockey player is killed during a game. Warrick becomes emotionally involved with a singer who may be involved in the death of one of her musicians.

The CSIs are puzzled when the number-one suspect in a monk’s murder turns out to be a brother monk. Catherine tries to find her friend’s killer.

The CSI team unites to investigate who sabotaged a bus that crashed 40 miles outside of Vegas and why nine passengers had to die.

The CSIs investigate the murder of a young woman who was being terrorized by a stalker and Nick realizes that he is being targeted by the same killer.

CSI investigate the death of an elderly woman. Sara and Nick try to figure out why someone would want to plant a pipe bomb in a young woman’s car.

CSI finds a body reduced to ash in a shallow grave. Nick investigates the death of a woman who drowned in the middle of the desert.

When a prominent official is found murdered and his wife and child are kidnapped, the entire law enforcement team is determined to find the killer.

A famous model is found dead - the leading suspect is her sister – now homeless and living on the streets in Vegas.

When a security guard is stabbed to death in a building, Mac and Flack rush to the scene of the crime. While investigating the murder, a bomb is detonated and Flack is sent to the hospital with severe injuries; powerless against a terrorist, Mac is left to solve the crime before the assassin strikes again.