While working an undercover prostitute sting operation in a nightclub to arrest a pimp named Neptune, Miami-Dade Police detectives James "Sonny" Crockett and Ricardo "Rico" Tubbs receive a frantic phone call from their former informant Alonzo Stevens (John Hawkes). Stevens reveals that he's leaving town, and, believing his wife Leonetta to be in immediate danger, asks Rico to check on her. Crockett learns that Stevens was working as an informant for the FBI but has been compromised. Crockett and Tubbs quickly contact FBI Special Agent in Charge John Fujima (CiarĂĄn Hinds) and warn him about Stevens' safety. Tracking down Stevens through a vehicle transponder and aerial surveillance, Crockett and Tubbs stop him along I-95. Stevens reveals that a Colombian cartel had become aware that Russian undercovers (now dead) were working with the FBI, and had threatened to murder Leonetta via a C-4 necklace bomb if he didn't confess. Rico, learning of Leonetta's death by telephone call, tells