影片记录了兰尼·麦克林的起源是20世纪70年代在伦敦东区一个年轻的街头霸王，挥之不去的影响的可怕的虐待，和他激烈竞争在三牌的拳击比赛的Roy Shaw，最终伦尼以冠军的老板。

  The film chronicles Lenny McLean’s origin as a young street fighter in 1970s East End London, the haunting effects of horrific childhood abuse, and his bitter rivalry with Roy Shaw across three unlicensed boxing matches, culminating in Lenny taking the championship title of ‘The Guv’nor.