The Fighter. The Activist. The Disciple. The Greatest. This documentary follows the early years of Cassius Clay, from bright-eyed rookie to world heavyweight champion and from working class intellectual to one of America's most influential civil rights campaigners.
The film reveals how the teachings of Elijah Muhammad, reinforced by a friendship with revolutionary preacher, Malcolm X, set Clay on the journey to become "Cassius X", before his induction to the Nation of Islam and ascension to the name of the great Muhammad Ali.