When a man's son is kidnapped by his enemy he must hit the vengeance trail.

After his father's brutal murder, Ton Tin-Kuo sets out to seek the killer. He is befriended by evil casino owner Don Yee, who actually sets Tong up to fight his bitter enemy Pau Tze-Pin, but Pau reveals the truth of Don Yee's tricks to Tong and later makes firm their alliance by rescuing him from prison and explaining that Don Yee is his father's murderer. When his sister is also killed by Don Yee, Tong thirsts for revenge!

Sammy is involved with gangsters to save his relative from a problem so he calls Dragon Hung from America to help him.

After Tien's parents are murdered, he is saved by the KSS and trains to avenge them. 10 years later, he is ready to save the earth using the powerful Iron Superman to defend Earth from evil invaders led by the King of the Flying Robot Empire, Fei Long Ri.