Narrated by actor Richard Kiley, this documentary focuses on legendary boxer Muhammad Ali, who, prior to his conversion to Islam, was known as Cassius Clay. In addition to featuring Ali in numerous classic fights, the film addresses the pugilist's renowned self-promotion and looks at how his much-publicized embrace of Muslim culture and faith altered his career. Among the many celebrities who also appear in this film are the Beatles, Malcolm X, Joe Louis and Sugar Ray Robinson.