First Officer John Carter is aboard a cruise ship hijacked by terrorists who plan to steal gold bullion from a U.S. Treasury ship, using a nuclear bomb as leverage

The police discover trace the perpetrators of a bank robbery to a group of organized criminals. The criminals attempt to use the sister of a deceased gang member to infiltrate the cops, but when she learns the gang was responsible for her brothers' death, she turns coat and assists the police in foiling the gang's plans.