Dooley and his K-9 partner Jerry Lee are ready to retire from the police force. But before he can retire with his pension he must work as a P.I. to…

People put up a lot of walls. Bring a sledgehammer to your life.

Gary accidentally crashes Maggie’s first date with a new guy, and Delilah is forced to have “the talk” with Sophie. Rome has an important meeting with a Hollywood big shot,…

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 first day on the job for Dr. Langston turns from bad to worse when a simple burglary case quickly overlaps with a complicated arson and homicide case.

The team has a hard time investigating a shooting in Koreatown when none of the witnesses will talk about the crime.

After Warrick is shot in a Las Vegas alley, the CSI team comes together to deal with the aftermath.

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.

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

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,…

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

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…

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…

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.

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…

The CSIs investigate the gruesome murder of Lady Heather’s estranged daughter, Zoe, who was found in the middle of the Vegas desert.

The CSI’s are called out to investigate the disappearance of a boy whose father died four years ago. Soon a couple is arrested at a convenience store with a boy…

Nick takes the lead on a case where in the house a family of four, three pools of blood are found. Nick thinks that the little girl may still be…

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…

Grissom and Sara investigate the murder of a mental-hospital patient and quickly narrow down the suspects to a handful of other patients and staff members.

When a major Las Vegas player is found dead, Ecklie orders both teams to investigate the case. The man who had secrets on everyone in Vegas had a very big…

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…

A woman who was pulled over by police is found murdered two miles up the road from the stop. It’s not long before Robbins determines that the woman is, genetically…

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…

Two men are found murdered after scamming Sam Braun’s casinos. Grissom and Warrick investigate after Catherine is thrown off the case. One of the suspects is the son of a…

A woman found murdered in her home. Her resemblance to Sara causes Grissom to take a personal interest in the case and forces him to examine the decisions he has…

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….

The team is introduced to the “”Furry”” side of Vegas when a man is found dead on the side of the road, dressed in a racoon suit. Elsewhere in Vegas,…

When the lead suspects in Grissom’s serial killer case are murdered, Grissom suspects an inside job. Grissom and Brass are at odds when Grissom suggests it was a cop. Catherine…

Two couples meet in a bar and one of the couples is murdered. When a second couple is murdered in a similar fashion the team suspects a pair of serial…

Grissom and Catherine investigate the murder of a despised comic who died onstage, apparently after drinking from a tainted bottle of water. The case grows more puzzling when a 15-year-old…

An elderly woman crashes her car into a crowded restaurant. One of the patrons is Sara’s paramedic boyfriend. Grissom and Nick investigate the possible carbon monoxide murder of a woman…

Grissom investigates the murder of two men that leads him to a new encounter with Lady Heather. Catherine is desperate to find out what lead to the near death of…

Grissom and Catherine investigate the grisly meat grinder murder at a slaughterhouse. Warrick and Sara look into the apparent suicide of a troubled young woman.

Grissom, Warrick, and Nick investigate the case of man who apparently was murdered and pushed off a six story building. Grissom’s involvement is cut short by renewed hearing problems. Catherine…

A middleweight boxing champ dies in the ring after taking a brutal beating from his nemesis, but Grissom finds evidence that points to murder. Outside, in a nearby parking lot,…

Grissom and Catherine investigate the murder of a wealthy couple who are discovered just outside of their glamorous Las Vegas house, which was up for sale. Meanwhile, Sara probes the…

Season Finale. The CSIs investigate when the body of an unidentified young woman is discovered stuffed in an overturned shopping cart near a freeway underpass. Her horribly disfigured and partially…