Will those crazy scientists ever learn that it's not nice to mess with Mother Nature? Once again, a biological experiment goes bad, this time releasing a gaggle of mutated great white sharks with a taste for human flesh. Soon enough, shark expert Nick West is on the case, leading a crew to study them and eventually bring them back into captivity. West's plans hit a snag, however, when Australian shark hunter Roy Bishop is called in to wipe out the fishy menace.