When a body is found in a foam party, he is identified by Grissom and Capt. Brass as the male prostitute Trey Buckman. Meanwhile, Catherine and Nick investigate a decomposed body of the also male prostitute Croix Richards in his apartment. Catherine receives a phone call from Eddie's phone, who is with Lindsey, with poor reception, but soon she learns that Lindsey is screaming and she leaves the crime scene to seek out her daughter. She finds Lindsey in a car in the water but she rescues her. Sara and Det. Vega investigate the case and they suspect that Eddie is dead. Meanwhile Grissom concludes that both victims may have been dead by insulin and they were employees of Lady Heather. Grissom and Catherine visit the suspect Rebecca and meet her husband Steven McCormick that tells to them a weird story. Then he goes with Capt. Brass to Lady Heather's house. Grissom has a personal moment with Lady Heather and when he learns that she is diabetic, he requests a warranty to get her insulin.

While working a foot patrol on the strip, the CSIs stumble on a murder victim, and a number of their suspects are already in police custody on lesser charges.

While investigating the death of a Cuban singer's sister, CSI discovers that the case may be tied to a feud between two Cuban families.

The evidence suggests that Sara is guilty of stabbing a man to death in a hotel room, but she insists that somebody is framing her.

While investigating the brutal homicide of a teenage motocross driver, the team stumbles upon a man and his daughter living in mysterious underground bunker.

The remains of a contestant eliminated from a cooking reality show are used as ingredients in the dishes served during the program.

A 16 year old girl is raped and killed, and the investigation leads CSI to a brothel and some disturbing family secrets.

CSI searches for a killer whose victims and locations resemble moves on a chess board, and Greg is forced to turn to an old mentor to search for clues about the next victims.

The family of a medical marijuana dispenser is held hostage, but the job of finding the kidnappers becomes harder after the best potential witness is killed by the dispensery's security guard.

While investigating the death of a high school chemistry teacher, CSI discovers that he belonged to a secret wiccan society.

An ex-con buried alive in the desert is killed after being hit by a car. The CSI investigation takes them into the world of pool, high-stakes hustling, and prostitution.

The team discovers that a mysterious homicide was caused by a man in a wingsuit, who is also found dead the next day.

D.B. makes the risky decision to use his daughter as bait to catch the Gig Harbor Killer, and discovers the shocking identity of the killer's partner.

A murder victim is covered from head to toe in silver chrome paint, and the clues lead the team to a classic convertible in which a Las Vegas legend was murdered.