Because of the drought around the world, Mountain Huaguo with a water source is harassed by powerful monsters around. To investigate the cause of the drought and also obtain a suitable weapon to fight the powerful monsters, Sun Wukong and his good friend Chikaoma Monkey participate in the Treasure Competition in the East Sea, but they get involved in an intrigue. With the Little Dragon Princess' help, Sun Wukong defeats the evil dragon Aoluan that wants to destroy the human world, gets the Ruyijingu Cudgel, and saves the human world.

At the end of the Ming Dynasty, when the eunuchs were playing power, the loyal minister Zuo Guangdou was murdered by impeaching the traitor Wei Zhongxian, and Man Sect died tragically under the dark power of Dongchang. His daughter Zuo Qinghan was rescued by Fang Tushan, a hundred households of Jinyiwei, who was the evidence of the party’s corruption and perverting the law, Zuo Qinghan