The CSIs investigate a triple homicide, and D.B. needs to find a way to connect with a 6-year-old girl who is the only witness and survivor.
The CSIs find a body near a forest reserve, they discover might be where a serial killer takes his intended victims.
David Phillips discovers the dead body of the most popular girl in his class at their 15-year class reunion.
The team must solve a series of grisly murders surrounding the world of high stakes poker before the killer plays the final card.
When a Sara in crisis is accused of murder, it's race against time and a suspect from the past to clear her name.
The CSI crew investigate the murder of a con man who's been selling counterfeit bottles of a rare wine for millions of dollars; Mac shows up from NY for a romantic weekend with Christine, who appears to have vanished from her hotel room, which is the scene of a crime...moreless
When a star tennis player is found beaten and stabbed to death after winning an important match, the CSI team must figure out who from her past and present might have had reason to kill her.moreless
When a TV news reader dies during an on-air power cut, the CSI team must figure out who could have had time to kill her before the lights came back on. Sara contemplates the future of her marriage.moreless
When a small executive jet crash lands a mile off the Strip, the CSIs wonder if it was intended as an act of terror, and to solve the case, Sara teams up with a former colleague from San Francisco with whom she still has sparks.moreless
When the CSIs agree to help out the Las Vegas Police Department's Mobile Crime Unit, they're quickly stuck with a rogues' gallery of bizarre street criminals -- and one dead body, with more to follow.moreless
When the decomposed bodies of eight young women appear in a newly made mass grave in the Nevada desert, Finley quickly realizes that one of the women--and presumably the other seven--is a victim of her long-time nemesis, Seattle serial killer Tom Cooley.moreless
When a dead CSI officer's prints are found at the scene of a bad guy's apparent murder, the team begins to suspect that a "guardian angel" has been acting to project his loved ones from beyond the grave.moreless
The Coach of the West Las Vegas University basketball team is a difficult, imperious, petty tyrant with a complicated personal life -- and when he's found bludgeoned to death in his locker room, Detective Russell's son Charlie is the prime suspect.moreless
The CSI is on the hunt for the person who killed a pretty young woman, found dead in the desert. Unfortunately, for Greg, the case has personal ramifications.
When a runaway sex slave is murdered during a rave in the desert, the detectives have to find the man responsible.
The CSIs arrive at their favorite diner only to discover a gruesome crime scene with eight dead victims and a lot of questions.
Picking up where last season ended, D.B. Russell's granddaughter has been kidnapped. In this 13th season premiere, watch as he leads the CSI team on a dangerous hunt to discover her whereabouts and attempt to rescue her.moreless
A new case has similarities to a past case and a serial killer Megan helped send to prison.
The team needs to quickly figure out how to treat the virus when more and more people are becoming ill and dying.
When a city-wide outbreak of a mysterious and lethal virus occurs, even Megan and her team are at risk. In order to determine who and what caused this outbreak, CDC Officer Charlie Stafford takes over the investigation.moreless
A case of mistaken identity mars a case when two young girls are in a tragic car accident. The wrong girl may have been pronounced dead and the actual cause of death is in question.moreless
When a son discovers his murdered parents, the team soon realizes that this perfect family wasn't really perfect. Megan has a new love interest and Curtis is grappling with his new position.
A dead body found in the trunk of a car leads the team to another body. Megan meets up with an old friend and Kate feels her job is in jeopardy.
Dr. Hunt and the team examine a family restaurant business when the owner turns up dead in the freezer.
An undercover cop is discovered murdered at a truck stop.
A wedding turns into a crime scene after the bride falls to her death and everyone including her father is a suspect. Ethan is captivated by Dani but she's already found another love interest.moreless