An Italian theatrical film edited from Mazinger Z vs. Devilman, UFO Robot Grendizer vs. Great Mazinger, and Great Mazinger vs. Getter Robo.

A young priest arrives in a small village because his old colleague is old and frail and cannot uphold the law of God with the necessary strength. He means well but the hypocrisy of the villagers who do not trust him makes his task only harder and while struggling for his beliefs, he falls victim to the sins of the flesh.

Johnny King, a rebellious drifter, sets out to avenge the death of his mentor and friend, Steve, after he has been murdered for his land by the Ward Brothers. After causing some trouble for the Wards, Johnny faces a new opponent, his outlaw friend, Meredith.