The film is adapted from the novel of the same name written by Yan Zhiyang. It tells the story of Shen Tuo (Liu Lincheng), a descendant of Mohist's official technique, who enters the Promise Prison alone in order to rescue his beloved wife, Jiang Ren (Liu Jingyi).
Another chapter in the Journey to the West saga, this time Tang Sanzang and his disciples must attempt to cross Fiery Mountain. But the region is controlled by demons led by the Bull King, and it seems that Sun Wukong’s own past may prove to be a bigger obstacle than the volcano blocking their way.