Journeying alone to the Three Stars Cave, Sun Wukong seeks to master the limitless arts of immortal magic under Bodhi the Elder, hoping to break the long drought afflicting Mount Huaguo. At the same time, the Dragon King of the East Sea secretly develops a drug meant to exact revenge on the Heavenly Court. This substance allows him to control the minds of its victims, transforming them into ruthless killers. When Sun Wukong uncovers the Dragon King's scheme, he and his allies join forces to thwart this sinister plot.