Shang, a martial arts enthusiast, meets boxer Ding who promised to quit boxing after a match against Tang. However, Ding was killed by Tang in the ring. Ding's ghost appears to Shang and trains him to avenge his death. Shang becomes the new champion under Ding's training and catches Tang's attention. Shang is about to challenge Tang when Ding discovers Tang's winning secret. Fearing Shang's defeat, Ding decides to enter the ring and fight Tang by himself.