Kirby the French bulldog, OB the turtle, and the ghost of Erasmus J. Peckinpah embark on a road trip to the mysterious Area 51, hidden in the wastelands of the Nevada desert. Erasmus has convinced Kirby to help resurrect his cryogenically frozen body (which they've brought with them in the trunk of an old Cadillac Eldorado they're driving) by acquiring a nuclear heart currently inside the chest of a cow at the facility. On their journey, the gang encounters the angry spirit of an old prospector, a motorcycle gang with a grudge against French bulldogs, and last but not least, a full-fledged alien invasion!