Imagine all the fury of a prehistoric carnivore combined with the ferocity of the largest crocodile known to man and you have the makings of nonstop terror. Run for your life as Gereco Corporation's experiment to manipulate a rapid-growth hormone gets out of control, and a ravenous monster gets out of its cage. Now the residents of the once-peaceful Grant's Lake have only the talents of a crude Australian reptile hunter, the short-handed local sheriff, his daughter the animal control expert, and her boyfriend, to save them from the insatiable jaws of a beastly feeding frenzy.