CSI: Crime Scene Investigation - Season 15

Finlay must deal with a bomb planted in her car, while Russell gets a call from someone claiming to be the Gig Harbor killer.

The CSI team investigates a robbery and fatal shooting at a medical marijuana shop.

Sara and Greg are quarantined after responding to a crime scene that's contaminated with a deadly pathogen.

The CSI team suspects foul play when a chemistry teacher's science experiment goes horribly wron.

Morgan, Sidle and Finlay try to relax at a forensics conference when a mass shooting occurs on site.

Frustration mounts for the CSI team as another victim surfaces and all evidence points to the Gig Harbor Killer.

The CSI team investigates the death of a woman full of alcohol and drugs in a pool at a rehab facility.

The CSIs delve into the kinky world of "rubber dolls" when they investigate the murder of a man who was stabbed in an alley.

The CSIs investigate a murder at the Clark County jail after an inmate stumbles upon a body while running away from officers.

The CSI team investigates the bizarre death of a man who was killed not once, but twice.

The CSI's investigation of the victim of an apparent hit and run leads them into the world of aeronautics.

The CSI team reopens a 10-year-old murder/suicide case when the sole survivor claims her accused father was innocent.

The CSI team learns the main suspect in the gig harbor killings is being released from jail due to lack of evidence.

The CSI team investigates a homicide at a convention for people who collect macabre murder memorabilia.

The CSI team investigates the murder of a young victim dressed as a superhero.

The CSI team investigates a death involving a vintage Rolls Royce and a chrome-covered victim.

The CSI team investigates a murder with ties to two teenaged kidnapped girls.

Season 15 ends with a final showdown between the CSIs and the Gig Harbor killer, whose motives are revealed. Meanwhile, Nick Stokes makes a decision that affects the team moving forward.