Professor Jones and the Stooges travel to the planet Sunev, and greet its inhabitants' leader the Grand Zilch, and his military commander the High Mucky Muck. The Stooges' gracious welcome, and dinner celebration with three amazon beauties, hides a Sunevian plot to conquer the Earth with an army of prehistoric zombies. Jones and the Stooges learn of the invasion plot, but find their attempt to foil the aliens' plans complicated when they accidentally release one of the zombies. 1957