Yin Shiniang finally gives birth after an unusual pregnancy lasting three years and eight months. Suddenly, Shi Ji the snake spirit appears, declaring that she has come for revenge for the harm she once suffered at the hand of Yin's husband, Li Jing. Mother and son are rescued by the powerful deity Taiyi Zhenren, who promises to teach the son, Nezha, the path of immortality once he comes of age.