Frustration mounts for the CSI team as another victim surfaces and all evidence points to the Gig Harbour Killer.
Sara and Greg become quarantined after entering a crime scene that is contaminated with a deadly pathogen.
The CSIs investigate a present-day crime with ties to a mob heist that occurred 25 years ago. Meanwhile, Brass has a decision to make when his daughter attempts suicide.
Russell is taken hostage after a teenager opens fire in a police station.
The CSIs investigate the murder of a rock and roll groupie and the disappearance of a prostitute that both have ties to a mysterious band.
The CSIs investigate the murders of an Elvis impersonator and a bird that are somewhat connected.
Nick and Greg investigate the death of a 16-year-old girl with ties to a brothel.
The CSIs investigate a car crash and are shocked to discover the victim is someone that they know.
The CSI team is brought in to investigate when a man is found murdered at an elaborate holiday party.
Sara, Finlay and Morgan's spa weekend turns into a murder investigation/missing persons case when Finlay goes missing, the CSI team figure out what happened in detail in order to find her.
The CSI are called in to investigate the stabbing of a couple found at a motel that and discover two other incidents which occurred in the same room.
The CSI team investigates when a man is found dead inside a human-sized hamster ball.
The CSI team investigates a John Doe found during torrential rains in Vegas. Meanwhile, Greg Sanders is investigated and accused of framing a man for murder seven years ago.
The CSI's investigates a murder of a homeless man who was found dead after a winning streak at a Casino.
Catherine Willows returns to help the CSI's solve a cold case which has haunted the team for the last 14 years.
The CSI team is brought in to investigate a reality cooking show when contestants accidentally eat human flesh during a competition.
The CSI team investigates a fire at a club venue which killed 4 people, including two band members..
Immediately after a major poker win at a hotel casino, the poker room lights go out and the casino is robbed of over a million dollars in chips.