Watch CSI Crime Scene Investigation Season 9 Full Episodes

A cache of missing chips from a closed down casino turn up in Vegas and a string of murders follow, leading Langston to use deadly force for the...

A band of vicious bikers is given the go-ahead to take down one of their own when it's discovered that the guy is an undercover cop.

A series of indeterminate deaths test the deductive powers of the CSI team, who fear that a public health emergency may be in the offing. Meanwhile,...

Catherine revisits one of the very first cases she worked as a CSI when the convicted felon in the murder claims the verdict was based on faulty...

When the producer of the reboot of a classic SF show is murdered at a Las Vegas science-fiction convention attended by both Hodges and Wendy (both,...

When a seasoned sky diver is paralyzed after free falling to earth when his parachute doesn't deploy, he turns out to be linked to the strange...

Langston is shocked when his former student is found murdered and becomes the focus of a CSI investigation into the world of Mexican wrestling.

Langston and Riley are taken hostage during the aftermath of a shootout in an usually calm Las Vegas community.

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...

The CSI are called to three different crime scenes in one night that are seemingly unrelated, but each case's forensic evidence reveals a common link

While Langston testifies in the trial of a respected Congressman, new evidence sends the CSIs back to the lab to reopen the investigation.

Langston and Nick are called to investigate a murder at a fast food restaurant and have quite a task ahead of them when they discover that much of...

The detectives search for the murderer of FBI agent Billy Ray Jackson, only Billy Ray isn't really an FBI agent, and neither are his impressively...

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...

The CSI team is shocked and saddened when, after working with Dr. Raymond Langston (Fishburne) on the "Dick & Jane" murders, Grissom announces that...

When the team discovers a connection between a new murder and a serial killer, Grissom secretly joins the class of a criminal pathologist (Laurence...

A popular young singer is found dead outside an infamous Las Vegas nightclub, leading the CSI team to uncover a link between that crime and a murder...

The murder of a mother and her child seems to be connected to a murder case from 12 years earlier.

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

Grissom asks Lady Heather for help when the team investigates a case connected to the world of domination.

The team investigates the death of a woman who turns out to be the daughter of a wanted criminal.

After several victims are found dead while performing normal, everyday activities, the CSIs must find the reason as to why each of the victims remain...

A hypnotist bank robber becomes the prime suspect in a murder investigation.

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