At the end of the Qing Dynasty, when foreigners invaded, the building was about to collapse. The chief eunuch Cheng Gonggong (Chen Huimin) took advantage of the chaos in the palace to secretly sell national treasures to foreigners. On this day, the rich son of Longshan Town, the martial arts master Long Shaoye (Jackie Chan) went out to play with his friends and accidentally came to a place full of treasures. The guards found the surprised Master Long and chased him all the way. Fortunately, the local Wang Yuanwai rescued him secretly, and Master Long escaped. It turned out that this was the place where Cheng Gonggong hid the national treasure privately, with many agencies. At the same time, Yu Hai, the deputy chief who had always opposed Cheng Gonggong's actions, stole some national treasures during the chaos. When Cheng Gonggong learned about it, he was furious and sent people to chase Yu Hai. Master Long drew his sword to help, but it also brought a fatal disaster to Wang Yuanwai. The furious Master Long decided to challenge Cheng Gonggong, the cunning traitor.