Detectives Marcus Burnett and Mike Lowrey of the Miami Narcotics Task Force are tasked with stopping the flow of the drug ecstasy into Miami. They track the drugs to the whacked-out Cuban drug lord Johnny Tapia, who is also involved in a bloody war with Russian and Haitian mobsters. If that isn't bad enough, there's tension between the two detectives when Marcus discovers that playboy Mike is secretly romancing Marcus’ sister, Syd.

A Las Vegas team of forensic investigators are trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.