The film opens with the title displayed over a black screen as a singer's voice is heard by an audience at a show. Shots show an anonymous man running alone at night, establishing mystery around his identity, while the singer performs for a crowd. The date 'February 24, 1964' appears, with shots alternating between the solitary runner and lively performance. When a police car stops the runner, it references the racial tensions of the 1960s. The scene changes to show the man training in a gym, revealing his identity as Cassius Clay through his shirt.