Some civilians are fleeing the bombing of Monte Cassino (depicted with actual footage from World War II newsreels).

Another refugee, who happens to be a friar from the abbey, retorts that it is not true and proceeds to narrate how, even at the time of the fall of the Western Roman Empire, in a wasteland similar to World War II, God produced a man like Benedict of Nursia whose sanctity helped restore the European civilization.

Little by little he assembles a community of fellow monks, and he dedicates his entire life to teaching the Christian disciplines, becoming a Saint in the process and performing several miracles for the glory of God.

Fosco Giachietti plays the title role with gravity, dignity, and authority, portraying the humility and dedication of the saint.

Alfredo Varelli is a standout as the macho young Marco, a warlike mountain shepherd who becomes Benedict's first adherent and most loyal supporter.