In the distant future, the Galaxy of Limbo is in trouble. Commander Stargazer reports to Earth Command of a prison break in which the deadly Mon-Star, empowered by the light of the Moonstar, has escaped his confines and now plans to terrorize the galaxy. Mon-Star has freed a group of ruthless villains, and the only hope for Stargazer and the forces of good are a new group of cyborg heroes being assembled on Earth.