The film tells the story of a westbound team composed of Tang Sanzang, Sun Wukong, Zhu Bajie, Sha Wujing, and Ao Xue who went to the other world to obtain the eternal fire. On the way, they encountered a mysterious "Holy City of Bliss". The team members fell into the illusion one after another, and Tang Sanzang was also unable to extricate himself from the illusion. Finally, with the help of his apprentice, he defeated his inner demons and defeated the Lord of the Shadow Magic City.