Director:
Since then / he has stayed away from the ring / getting further and further away from his childhood dream. By chance / Xiang Tenghui got back into contact with fighting with the help of a charlatan and established a children's fighting club. He went to a remote mountainous area to find underage children who were wild / fighting / and robbing children / and taught them how to box to make money. He even used any means to make fake boxing to make money. In these turbulent years / Xiang Tenghui saw the shadow of his original self in the children / and he did not want the teenagers to go back to the desperate days of sneaking around. For this reason / he led the young man without hesitation into the octagonal arena to fight against fate... This film is based on the true incident of the "Fighting Orphans" in Liangshan / Sichuan.
貌不惊人的沙厂老板向腾辉（王宝强 饰）曾经是一名技术精湛、潜力无限的格斗选手，但因听信教练的话吃了违禁药品遭到禁赛，之后更因伤人锒铛入狱。从此他远离擂台，离年少时的梦想越来越远。偶然机缘，向腾辉在江湖骗子的帮助下重新接触格斗，成立了一个少儿格斗俱乐部。他跑到偏远山区找来了野蛮生长打架抢劫的未成年儿童，教他们打拳挣钱，更为赚钱不择手段打假拳。而在这狼奔豕突的岁月里，向腾辉从孩子们的身上看到了自己当初
