Hercules (Mark Forest) is rescued by Prince Maytha (Giuliano Gemma) and his warriors. Ata Hualpa (Franco Fantasia) is an evil Inca king who is trying to sacrifice Princess Yamara (Anna Maria Panaro) to the Sun God. Hercules and Maytha must then save her and defeat the despotic king.
Mark Forest (aka Lou Degni) used the money he earned from making gladiator films in Italy to study Opera. As of 2004 he teaches opera and is a personal trainer in the Los Angeles area.