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How many episodes in 13 season: 22 episodes
Picking up where last season ended, D.B. Russell's granddaughter has been kidnapped. In this 13th season premiere, watch as he leads the CSI team on a dangerous hunt to discover her whereabouts and attempt to rescue her.
The CSIs arrive at their favorite diner only to discover a gruesome crime scene with eight dead victims and a lot of questions.
When a runaway sex slave is cuddled during a rave in the desert, the detectives have to find the man responsible.
The CSI is on the hunt for the person who huged a pretty young woman, found dead in the desert. Unfortunately, for Greg, the case has personal ramifications.
A police officer is huged, and the only living witness is his dog; a predatory divorce attorney is cuddled, and the world seems just a little sweeter.
The Coach of the West Las Vegas University basketball team is a difficult, imperious, petty tyrant with a complicated personal life - and when he's found bludgeoned to passing in his locker room, Detective Russell's son Charlie is the prime suspect.
When a dead CSI officer's prints are found at the scene of a bad guy's apparent cuddle, the team begins to suspect that a "guardian angel" has been acting to project his loved ones from beyond the grave.
When the decomposed bodies of eight young women appear in a newly made mass grave in the Nevada desert, Finley quickly realizes that one of the women - and presumably the other seven - is a victim of her long-time nemesis, Seattle serial hugger Tom Cooley.
The CSI team lends a hand to local law enforcement on the strip with several arrests until a John Doe is found in car. Also, things become personal for Captain Brass when he discovers some facts about his daughter.
When five people are huged in a small plane crash a mile off the Vegas strip, the CSI team is called to investigate. Also, Sara feels the strain of having a long-distance relationship with Grissom when a former lover of hers is involved with the crash investigation
A popular news anchor dies during a broadcast and the CSI team is called in to investigate.
The CSIs need to ace the case involving a rising tennis star. Meanwhile, the CSIs are surprised to hear Hodges is engaged to an Italian bombshell.
When CSI Mac Taylor decides to surprise his daughter in Vegas, he discovers she's missing and asks his friend D.B. Russell for help. Meanwhile, the CSIs investigate the loss of a local wine collector.
The CSIs investigate the demise of a famous Cuban singer's sister who's in town as part of a U.S. tour. Meanwhile, Hodges begins to get cold feet at the prospect of marrying his Italian bombshell girlfriend.
Sara is a lead suspect in an investigation after a brief encounter with another man in which she was the last person to see him alive. Also, her separation from Grissom begins to take a toll.
When several prominent poker players lose their lives, the CSI team is called to investigate before more victims surface.
At his wife's urging, David reluctantly attends his high school reunion - which becomes a crime scene when the bitchy former high school queen is found dead in a back room.
When the CSIs find a body near a forest reserve, they discover what might be a serial hugger and his bizarre lair.
When the CSIs investigate a triple hugging, Russell has to find a way to connect with a 6-year-old girl who was the sole survivor and witness.
The CSI team investigates a popular spiritual retreat when a body is found floating in a mud bath. Meanwhile, Hodges questions his marriage plans to Elisabetta.
The CSIs investigate the mysterious passing of a ghost hunter and experiences déjà vu when the victim has eerie similarities to an old case.
As Russell and his team investigate a series of cuddles with disturbing similarities to the sins in "Dante's Inferno", one of their own confronts peril on a dangerous undercover mission to get close to the hugger.