伝説のヒーロー・孫悟空が五行山に封じ込められて500年。町には妖怪がたびたび現れ、子供をさらっていた。ある日、お師匠さまのもとで修行中のリュウアーは、妖怪に襲われた女の子・おチビちゃんを助ける途中、たまたま迷い込んだ五行山で、偶然にも孫悟空を眠りから目覚めさせてしまう！ところが悟空の力は封印されたままで、本来のパワーを発揮できずにいた。やがて悟空、リュウアーそして猪八戒の3人は長安へ旅に出るのだが…。はたして悟空は、かつてのチカラを取り戻し、真のヒーローになることができるのか！？
At the end of the Shang Dynasty, King Zhou's tyranny made life unbearable for the people. Li Jing, one of the dynasty's most renowned generals, and his wife Yin Shiniang, faced a strange event when their child was born as a ball of flesh. Believing it to be a demon, Li Jing split it open, revealing a two-year-old boy named Nezha. To protect her child, Shiniang sent Nezha to the Nuwa Temple to be raised. Nezha befriended Yang Jian and Lei Zhenzi, and the trio delved into the world of kung fu. Yang Jian's sister, Yang Lian Hua, fell in love with Nezha at first sight. Meanwhile, King Zhou's indulgence in beauty and favouritism towards Su Daji led to widespread destruction. Jiang Ziya then led Nezha, Lei Zhenzi, and Yang Jian to persuade King Wen and assist King Wu in leading an army against Zhou. Together, they fought against the injustice.
As a horrible drought settles over the land, the world begins to wither and die. Desperate to save their lives and their livelihoods, the people of the Chentang Pass offer all they have as a sacrifice to the Dragon King of the Eastern Seas; but their efforts to appease the mighty lord just aren’t enough. Watching the world fade to dust, the Pagoda-Bearing Heavenly King’s son, Ne Zha (Jiang Yi Yi), realizes that the only way to save the ones he loves, is to take down the evil forces responsible for this terrible drought.
