Three hundred years after becoming a Buddha, Sun Wukong encountered the chaotic beast "entropic erosion" and destroyed the world. During the bloody battle, he learned that he was actually the reincarnation of the innate demon god "Chaos Demon Ape". In order to save the people, he needs to find the other three monkeys, merge their origins, and recast the Chaos Spirit Treasure. However, the brothers were separated, the divine soldiers were scattered, and the heavens wept with blood. In the end, both the Buddha nature and the body of the demon ape must be burned as a final torch for this world.