Watch CSI Season 15 Online
Watch CSI Season 15 full episodes online, free and paid options via our partners and affiliates.
On CSI Season 15 Episode 18, the team has a final showdown with the Gig Harbor killer whose motives are finally revealed and Nick Stokes considers his future with the team.
On CSI Season 15 Episode 17, the CSI team must investigate to figure out who has kidnapped two teenaged girls and where they've been taken.
On CSI Season 15 Episode 16, an odd case challenges the CSI team when a murder involves a vintage Rolls Royce and a victim covered in chrome.
On CSI Season 15 Episode 15, the team investigates when they come across a young murder victim who turned up dressed like a superhero costume.
On CSI Season 15 Episode 14, the team is on the case when a murder is committed at a convention for people who collect macabre murder memorabilia.
On CSI Season 15 Episode 13, the team finds out that the main suspect in a string of kidnappings is being released due to lack of evidence.
On CSI Season 15, Episode 12, the team reopens a 10-year-old case of murder/suicide when the only survivor insists that her father was innocent.
On CSI Season 15 Episode 11, the team dives into the world of aeronautics when they have to investigate a complicated hit and run accident.
On CSI Season 15 Episode 10, the team investigates the strange happenstance of a man who died not once but twice.
On CSI Season 15 Episode 9, when an inmate on the run finds a body at the Clark County jail, the CSI investigators are called in to the scene.
On CSI Season 15 Episode 8, a woman is found dead in a swimming pool at a rehab facility with drugs and alcohol in her system.
On CSI Season 15 Episode 7, an investigation delves into the world of "rubber dolls" after a victim is stabbed in an alley.
On CSI Season 15 Episode 6, another victim turns up who may be linked to the Gig Harbor Killer.
On CSI season 15 episode 5, a forensics conference attended by Finlay, Morgan, and Sara is disrupted by a mass shooting.
On CSI, the team investigates when a science teacher's experiment takes a horrible turn.
Greg and Sara are forced into quarantined when the respond to a crime scene that is contaminated by a deadly pathogen on CSI.
The team investigates when there is a robbery and shooting at a marijuana shop on CSI.
Russell gets a call from someone claiming to be the Gig Harbor Killer and Finlay finds a bomb in her car on the season 15 premiere of CSI.