Paddy Doyle is as tough as they come. In his early teens he was a British judo champion, pushing himself to the peak of fitness and endurance. But his fiercely competitive nature and rebellious temperament landed him in trouble with the law. A hard drinker and a troublemaker, he ended up in prison, but his passion for sport and fitness saved him. He turned his life around and went from back-street brawls to breaking records. This is the true story of one man's journey from the back streets of Birmingham to the brilliance of a world champion who refused to give up.