Marin Reigan lost his father and his home when Gattler staged a coup; seeking vengeance, Marin found a new mission to protect the untarnished skies and seas of that blue planet, Earth.

Evil aliens have polluted their own planet, so they use Earth as their new home; an outcast and his spacecraft try to protect the planet.

Hyperspace Force Aldebaran, pledging loyalty to Gattler, invades again and again, trying to gain a foothold on Earth.

Aldebaran's army, led by Gattler, begins its invasion of Earth with its new machine, the Big Oct.

Aldebaran's fierce attacks are putting humanity in a danger they've never faced before.

A mysterious moon appears, cutting off the sunlight, and wreathing Earth in darkness.