An massive earthquake opens fissures between the surface world and the underworld allowing man-eating dinosaurs such as velociraptors to attack human kind. Meanwhile, a crook steals a briefcase full of money and hides it in the woods where the dinosaurs are rampaging and unknowingly the criminal gang seeking their ill-gotten gains pursue two showgirls they think know where the money is located into the same area. Meanwhile, the Spanish army tries to locate and close the holes where the critters are entering the surface before mass carnage results.