CSI: Crime Scene Investigation Season 15 Episodes

Episode Guide

Season 15

Episode Guide

CSI: Crime Scene Investigation'

The CSI Effect

Finlay must deal with a bomb planted in her car, while Russell gets a call from someone claiming to be the Gig Harbor killer. Mark-Paul Gosselaar guest stars as twins Jared Briscoe and Paul Winthrop, and Mark Valley guest stars as Detective Daniel Shaw.

CSI: Crime Scene Investigation'

Buzz Kill

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

CSI: Crime Scene Investigation'

Bad Blood

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

CSI: Crime Scene Investigation'

The Book of Shadows

The CSI team suspects foul play when a chemistry teacher's science experiment goes horribly wrong. Guest stars include Marissa Jaret Winokur as Principal Dawn Meadows, Skipp Sudduth as Ed Lusk and Bella Thorne as Hannah Hunt, a student.

CSI: Crime Scene Investigation'

Girls Gone Wilder

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

CSI: Crime Scene Investigation'

The Twin Paradox

Frustration mounts for the CSI team as another victim surfaces and all evidence points to the Gig Harbor Killer. Guest stars include Mark-Paul Gosselaar as twins Jared Briscoe and Paul Winthrop, Mark Valley as Detective Daniel Shaw and Patricia Arquette as Avery Ryan.

CSI: Crime Scene Investigation'

Road To Recovery

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

CSI: Crime Scene Investigation'

Rubbery Homicide

The CSI team delves into the kinky world of "rubber dolls" when they investigate the murder of a man stabbed in an alley.

CSI: Crime Scene Investigation'

Let's Make a Deal

The CSI team investigates a murder at Clark County jail after an inmate stumbles upon a body while running away from officers.

CSI: Crime Scene Investigation'

Dead Rails

The CSI team investigates the bizarre death of a man who was killed not once, but twice. Sharon Osbourne guest stars as Elise Massey, the manager of a billiards championship.

CSI: Crime Scene Investigation'

Angle of Attack

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

CSI: Crime Scene Investigation'

Dead Woods

The CSI team reopens a 10-year-old murder/suicide case when the sole survivor claims her accused father was innocent. Dean McDermott guest stars as Garth Fogel, a suspect in the case.

CSI: Crime Scene Investigation'

The Greater Good

The CSI team learns the main suspect in the gig harbor killings is being released from jail due to lack of evidence. Guest stars include Mark-Paul Gosselaar as twins Jared Briscoe and Paul Winthrop, and Mark Valley as Detective Daniel Shaw.

CSI: Crime Scene Investigation'

Merchants of Menace

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

CSI: Crime Scene Investigation'

Hero To Zero

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

CSI: Crime Scene Investigation'

The Last Ride

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

CSI: Crime Scene Investigation'

Under My Skin

The CSI team investigates a murder with ties to two teenaged kidnapped girls. Lisa Rinna guest stars as Tori Nolan, the wife of the director of the San Diego Crime Lab.

CSI: Crime Scene Investigation'

The End Game

The CSI unit faces the final showdown with the Gig Harbor killer whose motives are finally revealed. Meanwhile, Nick Stokes makes a decision that will affect the entire team moving forward. Guest stars include Mark-Paul Gosselaar as Paul Winthrop, Mark Valley as Detective Daniel Shaw and Eric Roberts as Daniel Larson.