The Bull Demon King (played by Aaron Kwok), the king of the demon world, fought with the gods headed by the Jade Emperor (played by Chow Yun-fat). The gods were destroyed, and Nuwa (played by Zhang Zilin) turned into a crystal to repair the heaven. A small crystal fell to the earth and became a stone monkey, while the Bull Demon King was defeated and was forced to hide in the Huoyan Mountain with his wife Princess Iron Fan (played by Chen Qiaoen). A few years later, the stone monkey was taught by Bodhi Patriarch (played by Hai Yitian) and was named Sun Wukong (played by Donnie Yen). Sun Wukong came to Huaguo Mountain to establish himself as king, and also robbed the Dinghaishen Needle of the East China Sea Dragon King (played by Liu Hua) as a weapon. At the same time, the Bull Demon King was determined to make a comeback. He used the relationship between Sun Wukong and his childhood sweetheart, the little fox spirit (played by Xia Zitong), to incite Sun Wukong to make trouble in the Heavenly Palace, and colluded with Erlang Shen (played by Peter Ho) to destroy the South Heavenly Gate. Sun Wukong was determined to win, and the Heavenly Palace was in danger.