Taking the story of Tang Sanzang and others' journey before obtaining the Eternal Flame (Before Season 1) - Tang Sanzang and others went to the other side of the world to obtain the Eternal Flame, and traveled through the cities of the world. They were attracted by the fantastic and beautiful view of Qiongqi Cave, but instead got lost in the cave. Therefore, they accidentally found out about the Demon King Bai Yandi's conspiracy of Qiong Qi Cave. In order to prevent the shocking catastrophe that would strike the entire Demon Path, Master and Disciple fought together. But, Sun Wukong was controlled by his mind and turned into a giant ape. In the face of an unprecedented desperate situation and crisis, how will Tang Sanzang and the others fight back?