When an alien race invades and begins to brainwash humans to carry out acts of destruction, the rest of humanity must rely on an untested giant robot to save the Earth.
In the near future, a ship of space explorers crash land on an unknown planet. They're soon met with some of their worst fears as they discover the planet is inhabited by monstrous dinosaurs.
Five strangers - newlywed serial killers, a suicidal, depressed policeman, and two young runaways with a secret - become suspects and potential victims when a masked murderer makes its presence known in an isolated mountain town.