As Halloween descends on Sin City, the CSIs investigate when a creepy mannequin prop inside a popular haunted house turns out to be a real dead body. Also, Catherine enlists the help of Folsom to search for her friend who disappeared.

The CSI team investigates after a group of teens discover a dead woman behind the wheel of an abandoned car in a Nevada ghost town.

Max leads her team to investigate the death of a prestigious Michelin-starred chef found hanging in his restaurant’s walk-in freezer.

When the bodies of two Regency Romantic Festival attendees are discovered, the CSI team uncovers a shocking link between their murders and previous cases.

Catherine’s day off with her granddaughter gets interrupted when a woman wakes up from a four-year coma and remembers details from the night her sister died.

CSI komanda izmeklē lietu par arheologa nāvi, kas atrasts netālu no senās civilizācijas atklājuma.

Medicīnas izmeklētājas Sonjas dzīvība ir apdraudēta, jo viņa tiek pakļauta noslēpumainai indei, kad CSI komanda cenšas atrast pretlīdzekli un Sudraba tintes slepkavu, kas, šķiet, ir vērsies pret Noziedzības laboratoriju.

CSI komanda izmeklē lietu, kur zemesriekstu rūpnīcā ir atrasts miris izmeklēšanas reportieris. Savukārt visi noziedzības laboratorijas darbinieki ar bažām domā par to, kuru Makss paaugstinās par dienas maiņas vadītāju.

With their respected colleague Josh Folsom under arrest for the death of Kahn Schefter – the man responsible for killing Folsom’s mother – the CSI team combs through every crumb of forensic evidence to determine his innocence or guilt.

The CSI team is called to investigate when the bodies of Frank Sinatra and Joey Bishop impersonators are discovered behind the drywall of a home construction project. Also, Folsom must face the review board about the future of his career.

When a mechanic is found murdered in a dark factory, the CSI team investigates whether the perpetrator was human or a humanoid robot with an AI operating system.

The CSI team investigates the death of a local antique shop owner who died from an apparent gunshot wound that is missing one important clue - the bullet. Also, Max makes an important breakthrough in the ongoing case with Ocho from the robotics factory.

After an explosion in a bio lab, the CSI team races to determine which nerve agent left one of their own unconscious, while the others explore a dangerous underground tunnel to find another CSI who got kidnapped during the blast.