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.

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

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.

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.

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.

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.

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.

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.

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 is coated in cooking oil.

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

When a seasoned sky diver is paralyzed after free falling to earth when his parachute doesn't deploy, he turns out to be linked to the strange death-by-airborne-toxins of two wealthy men with ties to Iran.

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

A bowling tournament is disrupted when an important piece of evidence is uncovered, leading the CSIs to investigate a murder at the same bowling alley.

The team investigates when a woman is attacked by a shark in the pool at a Las Vegas casino.