Okay supposedly there is a young 150 million year shark that has been frozen in polar ice. The piece breaks off, do to global warming I guess. Now three years later after maturing in cold waters it moves south to warmer waters. Of course it creates havoc, killing several people. There is the stereotypical Mexican cop with an over inflated ego who doesn't believe until he sees it kill a couple of his men. Iva Hasperger is a girl's water polo team but some how manages to have a major role. She does look very good in a halter top and shorts. More people die as the shark moves toward the ocean. This brings up a question, why can this prehistoric shark survive so well in fresh water? I know these movies are sensationalistic in nature but why do the predators seemingly have an insatiable appetite? Why don't they ever get satiated, at least for a time? Anyway the heroes use grenades and a spear gun (?) to kill it. Thank goodness the movie is over, what a piece of garbage.