Prehistoric sanD.D.elling sharks are unleasheD.on the islanD.of White SanD. when an unD.rwater earthquake cracks open a crater D.ep beneath the ocean surface. The most menacing beats to ever rule the waters now rule the sanD. with their monster appetities they mercillessly feast on anything that crosses their path Mark Atkins D.rects this sci-fi 'creature feature' horror. When an unD.rwater earthquake opens up a D.ep crater on the ocean floor, a prehistoric breeD.of lethal sanD.D.elling sharks is unleasheD.upon the unsuspecting resiD.nts of White SanD. IslanD.