Langston is shocked when his former student is found murdered and becomes the focus of a CSI investigation into the world of Mexican wrestling.

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.

A couple leaving a restaurant on their anniversary are killed in the street and their car is stolen. The crime scene is compromised when it rains shortly after the CSIs arrive. It gets more mysterious when the car is found and it becomes a new crime scene. Catherine looks into the collapse of a city owned residence that kills three elderly women. She runs into problems with the city engineer responsible for the building.

The CSI team is lead into the rap music world as they investigate the murders of three rival teen rappers.

A chemistry teacher's science experiment goes horribly wrong.

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

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.

As the CSIs hunt a cannibalistic killer, they realize there is more than one.

Catherine violates department protocol when she takes the case of a rape accusation against her ex-husband. Warrick and Sara search for the missing bullet that will either exonerate or indict a cop for murder. Grissom and Nick investigate when a female skeleton is found under a house buried in cement.

Grissom and Sara investigate a bug riddled body found in the desert. Warrick and Catherine look in to the theft of some valuable art. Nick gets to find out why a missing woman's car is found at the bus station. Warrick is suspected of having gambled on duty.

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.

The CSI team take a look into the death of a woman who has been drinking and taking drugs in a pool at a rehab facility.

Grissom, Nick, and Warrick take the case of a jogger who was killed by a wild animal in the park. It gets complicated when they discover that the jogger had his liver removed after he was killed. Catherine and Sara investigate the death of a six year old girl at shady carnival.

A cache of missing chips from a closed down casino turn up in Vegas and a string of murders follow, leading Langston to use deadly force for the first time in his career as a CSI.

The CSI investigates the mystifying death of a former pro golfer whose allegiance to the game might have cost him everything.

When a band member of Rascal Flatts is electrocuted by his own guitar during a concert, the CSI team investigates if it was a case of foul play.

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

The team investigates two apparent corpses who aren't exactly dead at all.

When a bomb kills an off-road race truck driver mid-race, the CSI team is called on the scene to investigate why.

The CSI team investigates a fire at a music venue that leaves four people dead, including two band members.

A dead man is found inside a human-size hamster ball; the team collaborates on a serial rapist investigation.

A murdered groupie and a missing prostitute both have connections to a mysterious band.

At a swanky fundraiser, attended by the sheriff, a woman turns up dead in the pool. The owner of the house is away and a young couple is housesitting. Warrick looks into an apparent professional hit in the glass elevator of one of the hotels.

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 with help from Grissom try to determine how a the owner of a home was killed. His home was tented for infestation.

The swing shift has a busy time. Warrick looks into the murder of man by someone who apparently needs a wheelchair. Nick looks into the murder of woman in the subculture of the narcocorrido, songs about drug murders. The night shift is slow and lends help to Catherine's team.