Yang Zhenming is an illegitimate son whose father disowned him and whose mother died of illness. He is full of resentment and inner confusion. He was defeated in a fight to save a beautiful woman, but he met Qin Han, a fighting agent who was also frustrated and down and out. The two people who shared the same suffering decided to support each other and challenge the boxing champion with a perfect life. In this process, they went through hardships and were reborn, showing the strong and tender side of men for their families and lovers. In the end, after dozens of rounds of tug-of-war, Yang Zhenming defeated the boxing champion with his tenacious will, and shocked the audience and the ring with his fists and unyielding spirit.