After accidentally killing an opponent in the ring, masked wrestler Superargo quits wrestling and, following the advice of his friend Col. Alex Kinski of the Secret Service, becomes a secret agent, using his superhuman abilities to stop villain Diabolicus' plans to wreck the global economy by turning uranium into gold.

• Balcázar
• Liber Film
• Giovanni Cianfriglia
• Gérard Tichy
• Loredana Nusciak
• Mónica Randall
• Francisco Castillo Escalona
• Emilio Messina
• Geoffrey Copleston
• Valentino Macchi