Randy has a plan that will assure Stan the first-place trophy in the Pinewood Derby race: he cheats. He places a superconducting magnet in the wooden car. This launches the car into space where it is seen by an alien who follows it to Earth. The alien is a thief on the run from the space cops. He holds the entire world hostage in order to discover the car's secret and make his escape. But Randy won't admit he cheated for fear of having the Pinewood Derby trophy revoked.