The team uncovers a complex plot to rob a high-stakes Texas Hold-em game, but one of the co-conspirators may have been forced to participate against his will after his son was kidnapped.
The team gets a second crack at a reclusive millionaire who may have gotten away with murder 14 year earlier when a new dead body is found in his home.
Sara suspects CSI is dealing with a terrorist when she discovers a bomb in the possessions of a man found in a flood channel, and Greg is accused of planting evidence in an old case.
A spa weekend for Sara, Finlay and Morgan turns into a murder investigation and missing persons case when Finlay disappears, as the CSI team must piece together what happened in detail to find her.
After a number of passengers discover that their carry-on items have robbed during a flight, one of the primary suspects is murdered shortly after leaving the airport.
An investigative journalist appears to have been killed in a car accident, but CSI soon discovers that he is still alive and trying to uncover the truth behind a top-secret military project.
Dr. Robbins goes to Mexico to do an autopsy on a friend's daughter. Meanwhile, back in Vegas, CSI finds a man and woman shot to death and buried in concrete.
CSI searches for a killer whose victims and locations resemble moves on a chess board, and Greg is forced to turn to an old mentor to search for clues about the next victims.
A groupie is found dead in a limo after a show, and CSI ties the murder to a "fame experience" featuring three amateur rockers playing with KISS star Gene Simmons.
The discovery of a dead body rekindles a 25-year-old mystery involving a robbery and a dead boy, and an amateur forensic investigator helps crack the case. Meanwhile, Brass's daughter is in the hospital after an overdose.
