Super Express Mazinger 7

A new star appears in space, followed by a loud, unsettling sound that disrupts the universe's calm. The peaceful planet Antarichi is taken over by Alfred, a bionic human who opposes the beliefs of his creator, Casiofia. Seeking to conquer the universe, Alfred targets the city Orion for destruction. Kanann, the ruler of Orion, is caught off guard and unable to defend against the attack. He dispatches SuperSpeeder to Earth for assistance. A violent battle ensues. SuperSpeeder reunites with Mazinger 7 and a group of warriors to fight back. They ultimately defeat Alfred, who is destroyed along with his colony. The city Orion is restored, and peace returns to the universe.

Isinasalin pa — orihinal na teksto sa English.