A fleet of space dragon ships have been attacking mining operations and stealing the Caburites. Space Ghost discovers that the space dragon ships were created by Repto who plans to use the Caburites in a plot to turn the refined Caburites into fuel for his space dragon ships in a plot to take over the galaxy.
After completing a mission on the planet Vanderfor, Space Ghost, Jace, Jan and Blip notice that the planet is freezing. They leave the planet in the Phantom Cruiser and trace the freeze ray back to Feron. The twins are cryogenically frozen. Space Ghost destroys Feron's laboratory and frees the twins. Feron leaves in his ship. Space Ghost destroys Feron's ship and freeze ray.
After helping the Herculoids free a mammoth from a tar pit, Space Ghost discovers that a space cube is stealing all the precious metals in the universe. When the Phantom Cruiser is also stolen, Space Ghost discover that the robot Cubus is wanting to save the logical universe with his super computer Ultima and brainwash the creatures of the universe to think logically.