The Shang Dynasty, the East China Sea to attempt to assassinate general yecha usurper, the Dragon King of the East China Sea to reach a female he ruled the purpose. But the plot was the commander of Chen Tang Li Jingzhi sub Na Zha accidentally hit. In order to deceive the public, will be charged with dragon dragon referred to Na Zha, it becomes the enemy of the dragon. And on the other side, Na Zha blame Xian taiyizhenren life to the golden light hole way, on the way encountered with loss of memory of the encounter demon dragon, and the soil for master change and lodged in the operation of the sun, three people have been taiyizhenren received as a disciple. In a study of potential pedestrian Nezha spells, but came to the palace Inuyasha rate heavily Chen Tang Guan war triggered at any moment.

殷商末年，东海大将夜叉密谋篡权，企图暗害龙王之女以达成他统治东海的目的。不料其阴谋被陈塘关总兵李靖之子哪吒无意撞到。为了掩人耳目，夜叉将暗害龙女的罪名嫁祸给哪吒，将其变为龙族的公敌。而在另外一方，哪吒受怪仙太乙真人之命前往金光洞修道，途中遇到了遭遇夜叉暗害而失去记忆的龙女，以及精通变化和遁地之术的土行孙，三人都被太乙真人收为门徒。就在哪吒一行人潜习法术之时，夜叉却率龙宫重兵来到了陈塘关，大战一触即发。