Big M. and Little M. send monsters out to find a special stone at an exhibition. A mishap with this stone causes a surge, leaving the Supermen powerless and forcing the people of Planet Xing to fend for themselves. Far into the future, the Supermen have gotten used to their newfound power (or lack thereof), but not Happy S. When things go awry once more, a mysterious new face named Superman X helps the Supermen and Doctor H.