C.S.I.: Crime Scene Investigation: Season 9

CSIs past and present come together at the news of Warrick's death. But will Warrick's real killer successfully frame another police officer for his murder?

A woman's unlikely suicide is tied to a bank robbery and a hypnotist, the team investigates the murder of a guidance counselor who was also a degenerate gambler, and Sara helps out in an euthanasia case.

CSI is caught in a race against time to catch a failed artist-turned serial killer who is leaving his victims in unusual poses all over Las Vegas.

CSI discovers two dead bodies in the same dumpster. One committed an armed robbery in a stolen police uniform, and the other is the teenage daughter of a South American drug lord.

When CSI investigates a homicide that appears to have connections to the S&M world, Gil turns to Lady Heather for help. But is he really there because of his personal problems with Sara and not for the actual case?

CSI needs the help of an 8-year-old, HIV-positive boy to figure out who shot and killed his uncle and his mother during a street party in Koreatown.

A man blames the anonymous sender of emailed death threats after his wife and daughter are shot. Two teens in a convertible crash into a tree; one has an inexplicable shoulder injury. Grissom attends a transfer hearing.

When a finalist for a popular television amateur singing competition is killed, it sheds new light on a 50-year-old murder at what was the first integrated casino on the Las Vegas Strip.

When a new murder leads to a connection with an infamous serial killer, Grissom secretly joins the class of well-known criminal pathologist Dr. Raymond Langston to gain access to the killer and get a crack in the case.

Grissom gets Dr. Langston's help to find the man who is carrying on the serial killer's work before the next victim is killed. The case will prove to be Grissom's last with the crime lab.

Dr. Langston has a challenging first day learning the ropes both in the field and in the crime lab, and the team has a difficult time deciding who will get Grissom's old office.

The lab tries to unravel a complicated case involving fake FBI agents, an ultimate fighter, and a possible human trafficking ring.

The unit takes on cases involving two employees killed after hours in a chicken restaurant, and a struggling mortgage broker's wife who was killed from swallowing a lethal amount of toothpaste

A respected congressman faces trial for murder, but a suicide and confession during the trial cast new doubt on his guilt.

CSI gets three new dead bodies, and all three cases have a connection to the same con artist with multiple identities.

Nick volunteers on his birthday to take a case involving a 16-year-old girl found dead in the parking lot of a seedy hotel, because he got to know the girl while investigating other cases at the hotel over the last year.

While investigating a gang-related shooting in an otherwise quiet suburban neighborhood, Raymond and Riley are held hostage.

One of Langston's former grad assistants is murdered. He discovers that she was investigating Mexican wrestlers to solve a series of unsolved murders.

Nick and Riley investigate the case of a badly injured skydiver, while Dr. Langston investigates the death of a religious leader out in the desert.

Will a case involving a television producer killed during a sci-fi convention kindle an unlikely romance between Hodges and Wendy?

A case from Catherine's past is reopened when a man who has been in prison for 18 years challenges the evidence that convicted him.

Dr. Robbins determines that a number of unsolved deaths are actually from rabies, and that they are connected to a tattoo parlor and a former medical examiner from Reno who runs it.

A biker who is brutally stabbed to death in a biker bar turns out to be an undercover agent whose cover was blown.

Langston investigates a homicide which is connected to the discovery of rare valuable chips from a legendary casino from the 1980s.