Wayne and his family are going camping with the chief and his kids. Wayne makes a home away from home that he carries on his back. At night time during a storm it takes them back to the prehistoric age and now they must figure out a way to get back to the future.

Nick invents a machine of his own in an attempt to resurrect his dead pet bunny, Copernicus. Things go wrong when his invention summons a monstrous creature from another dimension that possesses the body of his deceased friend.