While passing the uncharted planet Metreon, the spaceship SS Pythagoras is attacked by hostile Geometroids who have taken the crew and ship hostage. The ship's security chief managed to avoid capture and now must fix the ship, free the crewmates, re-take control of SS Pythagoras and stop the Geometroids from taking over Earth.

While passing the uncharted planet Metreon, the spaceship SS Pythagoras is attacked by hostile Geometroids who have taken the crew and ship hostage. The ship's security chief managed to avoid capture and now must fix the ship, free the crewmates, re-take control of SS Pythagoras and stop the Geometroids from taking over Earth.