After Katie returns from her harrowing Caribbean adventure, our enchanting South Beach police rookie is back on the beat in Miami. We follow her to a series of routine police calls which quickly become anything but routine. Katie is assigned to work with a grumpy, ill-tempered veteran officer who has no use for rookies, or anyone else for that matter. The action culminates with a public dedication ceremony for the latest edition to the U.S. Navy's fleet of nuclear submarines, during which Katie is detached from her regular duties and appointed to work 24/7 with the Secret Service agents guarding the promiscuous husband of the President of the United States. In addition to dealing with the lecherous First Husband, Katie and her federal agent partners are soon confronted by a group of Native American militants intent on blowing up a nuclear reactor. With car chases, hand-to-hand combat, shoot-outs, and an imminent nuclear disaster, the thrilling action never stops.