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…

Three new murders related to three unsolved (or incorrectly solved) crimes from the past come back to haunt the CSIs.

The CSI crew is stumped when they discover a disembodied brain at a crime scene where all the other brains are accounted for.

A vampire and werewolf convention becomes the center of a murder investigation.

The CSI team investigates a well-orchestrated bombing at the funeral of Officer Franklin Clark

The CSI’s lives are on the line as they close in on the elusive Dr. Jekyll, and more than one member of the team may not live to see his…

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…

The CSIs dig to find the truth about how a recent shootout at a gun store might connect to a young woman who may have committed suicide.

When two seemingly different crimes turn out to be related, the CSIs discover they’re interlocking parts of the same revenge plot.

A series of indeterminate deaths test the deductive powers of the CSI team, who fear that a public health emergency may be in the offing. Meanwhile, a friendly rivalry over…

When the CSIs are called to a murder scene at a familiar motel, Nick is thrown for a loop as he pieces together three separate murder investigations that all took…

The CSI are called to three different crime scenes in one night that are seemingly unrelated, but each case’s forensic evidence reveals a common link

Langston and Nick are called to investigate a murder at a fast food restaurant and have quite a task ahead of them when they discover that much of the evidence…

When the team discovers a connection between a new murder and a serial killer, Grissom secretly joins the class of a criminal pathologist (Laurence Fishburne) to help crack the case.

The team investigates the death of a woman who turns out to be the daughter of a wanted criminal.

After several victims are found dead while performing normal, everyday activities, the CSIs must find the reason as to why each of the victims remain upright after dying.

A man accused of murdering his wife and co-workers leads the CSIs on a wild ride through a busy casino, eventually barricading himself and a hostage in a casino hotel…

The CSIs sift through the overwhelming evidence from a shootout with drug dealers in order to determine who is responsible for the death of a police officer killed during the…

The team must investigate the death of a police officer who died during a shootout leaving hundreds of bullets on the crime scene. The case becomes complicated when it turns…

The two forensic teams come back together under the leadership of Grissom and Catherine just in time to tackle three separate investigations: a murdered couple found in bed in a…

Two amorous freshmen are found dead on a sleeping bag in a dorm room, and Sara and Greg run into one dead end after another as they try to determine…

A man (Alan Rosenberg) whom Catherine flirted with at a bar reappears in her life as a suspect in a murder investigation.

Grissom, Sara, and Nick investigate a wildfire that killed one man and badly burned a woman. Catherine, Nick, and Warrick get the case of a family of three murdered in…

Catherine, Nick, and Warrick investigate a badly mutilated body in the woods. The cause of death was a shotgun blast. Nearby is a beaver dam made in part with cash….

Grissom and his team investigate the starving death of a five year old boy. They discover the boy has siblings who are in danger too. Catherine and her team determine…

Grissom is confronted with new evidence while on the stand of a murder trial of a restaurant owner. This development requires the reopening of the case and Eckley initiates an…

A woman is found dead in a hotel suite with symptoms of the ebola virus. Another woman is found dead with similar symptoms. Catherine and Nick investigate. Sara and Greg…

A wild night in Las Vegas has the CSIs simultaneously investigating four fatalities. Greg Sanders’ first day in the field has him assisting Grissom’s investigation of a fatal nightclub shooting….

A casino employee is beaten and raped on her way home from work, but she survives and identifies her attacker. Unfortunately, a DNA test sets him free and Grissom must…

Grissom, Catherine and Nick investigate the death of a runner during a competition. Meanwhile Sara and Warrick investigate the death of couple in a hotel room, initially thought to be…

A mutilated female body is discovered tied to the undercarriage of a bus carrying prisoners from a women’s correctional facility after a severed arm flies out from beneath the vehicle…

The lone holdout on a jury is found dead in the jury room. The eleven jurors who were voting guilty and who hated the dead juror are the natural suspects….

The sheriff is under political pressure to find who killed a air marshall with a car bomb that the sheriff witnessed. Grissom, Catherine and Nick are pressured to produce results….