An Internet entrepreneur is killed in his pool by an alligator, and the investigation leads back to two high-profile matchmaking services, one of which may not be what it seems.
While CSI investigates a strange double homicide involving one bullet, they discover that the case is connected to a bizarre, deceptive online love triangle.
After a young woman is tortured and killed in the hurricane shelter of a foreclosed home, and another body is discovered in a state park, CSI suspects that it is looking for a man and woman team of serial killers.
A convicted killer who escaped from prison is now suspected of another murder. However, he kidnaps Natalia and tells her that he is innocent of both crimes, and a reexamination reveals that he may be telling the truth.
The final jailbreak escapee is caught, but he escapes police custody and is on the loose in Miami, and the life of one of his former cellmates is turned upside down by his actions.
Horatio saves Natalia and sets out to track down Randy North before serial killer Jack Toller strikes again. However, a seriously-wounded Horatio begins having visions of his dead wife Marisol.
Solving the death of a Dade University co-ed becomes more complicated when the crime scene is destroyed by a tornado, but the investigation soon focuses on a team of storm chasers after a second badly injured person is discovered.
A masked robber crashes into an illegal high-stakes poker game, leaving a Hollywood producer dead. But the evidence suggests that he was killed by a hidden second accomplice.
When another body of a dead woman is found on the beach, Horatio thinks that Esteban Navarro, the "Miami Taunter," has struck again. But could it be the work of a tribute killer, or perhaps something even more sinister?
Three high schoolers convicted of killing a boy in 1992 are set free 19 years later. However, when one of the men is found stabbed to death, new questions arise about their innocence and what really happened that fateful day.