It follows a group of forensic experts with the Las Vegas Police Department, who are investigating mysterious cases.
In the second season, the team delves into several new cases, from the death of a famous casino manager due to a drug overdose to the passing of a much-hated hockey player.
The Las Vegas police continue their work. Nick and Catherine investigate the death of a young car racer, while the others investigate the death of a poker player while playing.
A luxurious hotel witnesses a series of unjustified murders, and members of the investigation team begin their work, before information leaked to the press about the tragic incident causes shocking results.
Las Vegas police homicide detectives strive to continue their work. They must investigate a crime that took place in a nightclub, before heading to a hotel to investigate the shocking murder of a woman.
Las Vegas police detectives resume their work, as a taxi driver leads the investigation team to a series of mysterious deaths, before the death of a woman whose husband may be connected to the accident is investigated.
Las Vegas police forensic experts continue their work, as they have to find a killer whose victim is still holding the murder weapon, before they head out to arrest a gang.
In season 8, the team of crime scene investigators continues to solve various and difficult crimes by carefully examining the evidence and using advanced technology.
The Las Vegas Police Investigation Team leads cases in order to solve many mysteries, including a murder that is linked to a bank robbery and a guidance counselor with a bad history is murdered.
The Las Vegas police detective team continues their missions. They must investigate a bombing that occurred during an officer's funeral, while a dispute causes a shark to appear in a swimming pool.
In the twelfth season, the team tries to overcome the great ordeal it suffered after the Nate Haskell case, and Ray Langston becomes the team's leader, while new faces appear in the office.
The forensic investigation experts at the Las Vegas Police Department strive to continue their work. While one fights for his life after being shot, another begins to lose patience as the team races to rescue his kidnapped granddaughter.
An elite team of Las Vegas police investigators are trying to solve a number of crimes, including CSI team member Morgan getting kidnapped and a fire breaks out during a concert.
After the ghosts of their past return in the form of a ruthless serial killer, Detectives Russell and Finlay must solve a complex case in order to prevent more bloodshed.