In the documentary Tyson, Mike Tyson tells his life story. He started boxing as a reaction to fear in a youth prison. His coach sends him to Cus D'Amato who becomes his coach, father figure and confidence builder. Tyson wins a series of championships and is during six years an unbeatable heavyweight boxer. But a failed marriage, a prison sentence and a lack of training leads to his fall, everything sincerely documented here by his friend James Toback.