Finlay has to deal with a bomb planted in her car. Russell receives a call from somebody claiming they are the Gig Harbor killer.
The CSI team take a look at a robbery and fatal shooting carried out at a medical marijuana shop.
Sara and Greg end up being quarantined after responding to a crime scene that ends up being contaminated with a deadly pathogen.
A chemistry teacher's science experiment goes wrong, leading the team to believe foul play is involved.
Morgan, Sidle and Finlay attempt to relax at a forensics conference but a mass shooting occurs on site.
When evidence indicates that the Gig Harbour killer is responsible for yet another death, members of the team become frustrated.
The CSI team take a look into the death of a woman who has been drinking and taking drugs in a pool at a rehab facility.
The CSI team find themselves taking a look into the kinky world of “rubber dolls” as they investigate the murder of a man stabbed in an alley.
The team take a look at a murder at Clark County jail after an inmate discovers a body whilst running away from officers.
The team attempt to find out more about the bizarre death of a man who was killed 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.