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…

[Period covered: 1616] Kirigakure Saizo returns for the final time as he sets out to assassinate Tokugawa Ieyasu in order to avenge the death of Lord Sanada Yukimura. But first…