After being released from prison, Pei Feng, a former ten-time boxing champion, hid his identity and worked at a boxing club. By chance, he discovered members of the organization that had caused his father's death coming to challenge the gym. To avenge his father and protect his friends at the boxing club, he was forced to step in and successfully repel the enemies. Afterwards, relying on his iron fists, he forced the big fish hidden behind the scenes to surface, successfully making the bad guys who caused his father's death reap what they sowed!