After an accidental explosion at the local mine, a long-thought extinct breed of dinosaurs emerge from the rubble. Now Val Walker, a disgraced cowboy who recently came home to make amends to his former love, must unite with his arch enemy to defend the town against rampaging dinosaurs. Banding with a group of local gunslingers, they all must learn to fight together if anyone is going to survive in a battle of man versus dinosaur.