Sammy is involved with gangsters to save his relative from a problem so he calls Dragon Hung from America to help him.
When a man's son is kidnapped by his enemy he must hit the vengeance trail.
An Earth Defence Brigade is formed to protect the world against invaders from outer space. The ruthless Frang Gang begins its raid against the earth on land, sea and by air. But they meet their match in the super robots of the Earth Defence Brigade.