For many years the U.S. Navy has been training Dolphins for mine sweeping. But what if a more deadly maritime creature could be trained as an attack weapon? One such creature exists today; a prehistoric creature that has outlived the dinosaur; a creature that is the perfect killing machine... the shark. Bio-engineer Jim Castle has developed the 'warrior shark'. Bred from replicated DNA samples, these sharks are bigger than a killer whale but ten times as lethal. But when Castle's creations break out of the facility and head for the Florida coastline, a battle is set in motion between an army of monster sharks and those who created them.