A pair of cops investigating a drug invasion stumble upon a mysterious bank vault.
After an accidental explosion at a local mine, dinosaurs emerge from the rubble to terrorize a small western town. Now, a group of gunslingers must defend their home if anyone is going to survive in a battle of cowboys versus dinosaurs.
Officer Chris McCullers was gravely injured in a shootout and now works on 911-dispatch. Resentful that her career has ended up here, Chris receives a call from a scared kid and dismisses it as a prank. The next day, she learns that the call was all too real: there's been a murder.
