A CSI goes down in the line of duty when a kidnapping investigation goes awry.

A drive-by shooting, Miami-style, leaves a ten year-old boy orphaned and puts Salas in the line of fire when Horatio places the boy in her care.

A woman is pushed in front of a moving Metrorail train and both her boyfriend and his stalker exgirlfriend are suspected of her murder. Calleigh Duquesne’s father’s latest bender might make him a hit-and-run killer.

A flash mob erupts on a private golf course – were the students there to hide a body . . . or leave one?

Miami’s club scene turns deadly when underage drinking sparks a bloody murder in a bathroom stall.

A jury field trip to the scene of a murder flips the legal tables when the defendant ends up dead and the twelve jurors become the prime suspects.

Miami Beach is evacuated for an approaching tsunami, but the CSI team remains after discovering a bank robbery plot while investigating a seemingly random murder.

A “Speed Dating” night for Miami singles turns deadly for one South Beach stud who finds himself on the wrong end of a tire iron.

A string of dead bodies, found off the coast of Miami, turns out to be the work of modern-day pirates.

An innocent man is killed when someone falls on him from a third floor balcony and finding out how it happened leads the CSI team into the center of a high-level sex and murder scandal.

A seemingly random carjacking turns out to be anything but when a young woman’s gambling addiction becomes more than the family business can support.

A hospital emergency room shootout investigation puts the CSI team in the middle of a murder case involving the leader of a prominent street gang.

A routine traffic stop ends in the senseless murder of a patrolman, and the CSI team must sort out a young girl’s obsessive love affair in order to find the killer.

A “Friction Party” at a private suite in one of the city’s hotels accommodating hundreds of cruise passengers leaves a young woman dead, and means the CSI team must work fast, before the killer escapes onboard one of the many cruise ships leaving the harbor each day.

Horatio Caine faces a former nemesis who escaped his grasp once before, and a case of stolen identity leads to murder, but the question becomes “which one did it?”

Florida’s gator and snake-infested Everglades becomes ground zero for a number of unrelated murders just as fires engulf the rare eco-system; Alexx is taken hostage by a desperate killer with nothing to lose.

Florida’s gator and snake-infested Everglades becomes ground zero for a number of unrelated murders just as fires engulf the rare eco-system; Alexx is taken hostage by a desperate killer with nothing to lose.

When a small jet crashes into a residential neighborhood, the wreckage of the charter plane reveals a corpse in the plane’s cargo hold, along with a half-million dollars in cash.

The world of extreme skateboard videos turns deadly when the competition heats up inside the studio.

Tax season gets off to a bang when two IRS agents turn up dead.

South Beach Miami’s sexiest nightclub becomes a hotbed of revenge when murder closes the doors on a unique dating service.

An eight year-old girl becomes the innocent pawn in an ugly and abusive game that ends in murder.

When a former high school football star is murdered at a reunion, the CSIs must find the killer. The victim was the big man on campus in high school and there are a lot of guests at the reunion with reasons to resent him all these years. Now, the team must investigate everyone, from the head cheerleader to the school misfit, to see who held a decade-old grudge big enough to kill. Meanwhile, Horatio and Delko arrive at a crime scene and discover that it's already been processed, leading Horatio to uncover further information about his brother possibly being alive.

An axe murderer on death row is given a stay of execution just moments before it was to take place, on the grounds that there may have been tainted DNA analysis used at his trial. Now, without using any DNA evidence, the team must race against time and re-examine all of the physical evidence in the case, just as they get a call on a new double murder that looks suspiciously like the case they're working on.

While investigating the murder of man hired to make dirty bombs that terrorists intend to set off in Miami, Horatio finds the bloody fingerprint of his brother, Raymond, who he believed to be dead. However, when Raymond's son is kidnapped, he emerges from deep undercover and the estranged brothers must work together to save the boy. Meanwhile, while processing a crime scene, an unknown assailant holds a gun to Calleigh's head and, after a deadly confrontation in her gun lab, she is left doubting that she can continue as a CSI.