Return of Daimajin(大魔神逆襲)

In a mountainous region of Japan, Lord Arakawa kidnaps the men of nearby villages to use as slave labor, producing gunpowder from his sulfur pits. A band of young boys decide to rescue their enslaved fathers, but with the roads guarded by soldiers the only option is a cross-country route across the snowy peaks of Daimajin's mountain.