The skull of a Tibetan reincarnated lama was auctioned in Hong Kong and bought by tycoon Mr. Zheng. That night, a group of thieves and two small thieves Xiao Jian (Xia Yu) and Xiao Bing (Zhang Weijian) who came from the mainland to Hong Kong broke into Zheng's house to rob. Unexpectedly, the alarm was triggered. In the chaos, Xiao Jian stole the Nine-turn Spirit Boy and threatened the passing taxi driver Alan (Deric Wan) to take him away. On the way, he was discovered by the new apprentice sister Hou Yingying (He Wanying). Yingying tried her best to catch up and triggered the magic power of the Nine-turn Spirit Boy with the two of them. The three of them traveled back to ancient times together... The three people who fell on the Mongolian grassland were caught by Genghis Khan's men. Fortunately, the hero Yang Guo (Andy Lau) rescued them. Xiao Jian and Yingying took the opportunity to learn the Jade Girl Heart Sutra again; the three of them used the Nine-turn Spirit Boy again. This time they broke into the duel between Ye Gucheng (Adam Cheng) and Ximen Chuixue. With the guns in their hands, Xiao Jian and others caused a storm in the arena; the three who ascended again came to the world of "The Greatest Heroes" and saw the boldness and righteousness of Duan Xiaofei (Stephen Chow), the son of Duan Fei. Xiao Jian never forgot to do evil while traveling through time, and finally he even dreamed of becoming the emperor. Alan found the late emperor Zhu Jinchun (played by Zheng Shaoqiu) and asked him to cooperate with him to stop Xiao Jianjian from marrying Yingying...