During the warlord period of the Republic of China, Japanese tried to provoke trouble in Fengtian. Chen Zhen fell into the trap of his opponent and his family fell into ruin. Chen Zhen once had a marriage contract with Meng Ruhui's daughter Meng Qingqiu, so he was taken in. In order to revitalize the family business, Heshengtang, Chen Zhen began to work hard. By chance, he became a "deacon" at Dasheng Pawnshop, and worshiped the old beggar, a master in the world, as his teacher. After hard training, Chen Zhen was upgraded from an iron disciple to a golden disciple. Meng Ru secretly colluded with the Japanese and helped Japanese forces enter Fengtian. In order to prevent foreign invaders from conspiring to protect Fengtian, Chen Zhen went to the martial arts arena opened by Funakoshi Yoshiki, risking his life to challenge Japanese martial arts masters, and finally defeated the Japanese.