Shanghai is a paradise for countless people to pursue their dreams... Ma Yongzhen (played by Philip Ng), a young man with natural supernatural powers, came to Shanghai from his hometown to make a living. He got a hard job under the rule of the old gang Axe Gang, which occupied half of Shanghai's sphere of influence at the time. Unexpectedly, his companion stole the opium from the Axe Gang. When the latter attacked, he and Lao Tie (played by Sammo Hung), who lived in the slums, rescued his colleague. In order to track the whereabouts of the opium, Ma Yongzhen and the owner of the other half of Shanghai's sphere of influence, the newly rising Long Qi (played by Andy On), did not know each other. Because he was excluded by the Axe Gang, he had to join Long Qi with his companions. Because of his mother's teachings, Ma Yongzhen had no intention of joining Long Qi's gang, but Long Qi did not care and became friends with him. Soon, the real owner of the opium, the Japanese, wanted to intervene in Shanghai and used the contradiction between the Axe Gang and Long Qi to kill Long Qi and Lao Tie and others. Ma Yongzhen could not bear it and vowed to take revenge...