CSI investigates the death of a little girl whose identity remains unknown.

Grissom and his team battle the flu when they are called upon by D.D.A. Klein to investigate the deaths of several key witnesses for a grand jury case against a…

Two murders that happen during Las Vegas’ annual bull riding rodeo are investigated by the CSIs, who find that the murders might be connected to illegal bull breeding.

The world of illegal dog fighting is explored by Grissom and the rest of the team when they take on the case of a wealthy socialite who was murdered. Meanwhile,…

The team investigates an underground mob. Warrick ends up becoming the prime suspect in a murder that’s related to the mob, and his addiction to pills starts to have a…

Hodges stages hypothetical murders in the lab in order to give his fellow lab techs a chance to play CSI, but unbenownst to them he has other motives behind his…

Sara questions her future as a CSI when a past case comes back to haunt her, the 12 year old Hannah, who has to back up her brother one more…

Grissom and the team join forces with Jack Malone, an FBI Agent from New York to track a serial killer. The crossover continues on Without A Trace S06E06 Where &…

Grissom and his team investigate when an actress is killed on the set of a horror porn film.

Grissom investigates the mysterious hanging death of a young man whose body looks like that of a female.

The team investigates a girl whose whole family had been killed and she is supposedly possessed by the devil.

The CSI team investigates two unusual cases, one involving the suspicious death of a go-cart racer who took his hobby to the highway and paid the price with his life,…

With time, the weather, and the desert against them, the CSI team must work together to find Sara before she dies from the miniature killer’s attack.

As the CSI’s continue their search for and discover the identity of the “Miniature Killer”, Grissom and Sara’s relationship gets exposed to the rest of the team as she goes…

Grissom investigates when a sadistic client tries to murder Lady Heather (Melinda Clarke), who makes the probe more difficult when she refuses to name her attacker. Also, Grissom’s reunion with…

Several suspects in a murder case are UFO-club members who believe shape-shifting aliens have been working to conquer the human race for centuries

The CSI labrats take center stage to discuss the case of the Miniature Killer.

When a has-been boxer is killed, the CSIs must establish which of several life-threatening acts actually killed him.

After a man is killed in his limousine, Greg finds that the murder victim has ties to the man he had to kill in self-defense. The team finds that the…

The terrified eyes and cryptic words of a murder victim haunt Sara while she processes the house where several showgirls were killed.

Grissom and his team are discouraged when they find a pool of blood as they begin investigating the disappearance of a high school basketball star and his cheerleader girlfriend.Grissom’s quip…

Once he unseals a package sent to him through the mail, Grissom is floored when he finds a miniature crime scene inside. The finding is entirely more perplexing since the…

Grissom returns from his sabbatical; Keppler is put into a compromising position when the bodies of a Trenton police officer and a hooker are found in a hotel room. The…

Nick and Keppler investigate the bizarre world of the black market sales of body parts after they find a body that has been burned and the organs removed. The rest…

At Keppler’s request Catherine uses a different approach to catch the killer, and in doing so she deceives the rest of the CSI team. The team soon discovers that something…

The team has a hard time trying to understand Michael who has become a team member since Grissom’s teaching hiatus. They investigate the murder of an unidentified girl who may…

Catherine testifies in a murder trial in which a man is accused of murdering his own mother three years ago, but the suspect is found not guilty. Catherine, however, believes…

Grissom investigates when a worker at a poultry processing plant is found dead in a stun bath used to electrocute chickens before they are slaughtered. Nearby, a miniature replica of…

The Cadillac of an infamous 1970’s mob boss turns up in a lake, even though he disappeared years ago. A photo of current murder victims also turns up in the…

Identical twins are found murdered on the same night. The CSI’s investigate the two separate murders only to find a twist in the investigation find that leads them in another…

While investigating an elderly woman’s murder, Grissom receives a miniature crime scene replica; Greg attends a hearing to ascertain his culpability in a teenager’s accidental death.

Grissom attempts to get a confession from a neighborhood pedophile by having him help in locating two missing boys. The sex offender is the main suspect. The investigation is more…

Grissom and Sara may be secret lovers, but they still find ways to surprise each other like when their religious beliefs surface when two nuns find a body of a…

Three tourists are beat up, badly. One is dead, Alfonzo. Jessica is badly beaten but is still alive. Stanley, the last tourist is saved by Greg who ends up severely…

Coming straight from the perspectives of five people: Donna, Rebecca, Jack, Lou and Ray. All with one thing in common. They’re all dead. Brass and Catherine get to handle the…

In the second part of this two-parter Grissom investigates the murder of an aging rockstar who is found dead in his kitchen with an exact replica of the crime scene…

In part one of this two-part seventh season opener Grissom and Catherine handle the case of a women’s dead body found at Cirque du Soleil by a performer. Meanwhile, an…

In the season finale, the CSIs wait by the bedside of one of their own when he’s shot in the line of duty. One CSI faces a hard choice by…

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…

A high roller who spent the night with a woman he had just met is found dead on the loading dock of the casino where he was staying. The investigation…