A four-part series featuring four champions who ushered in a boxing renaissance. The series showcases the dominance of Roberto Duran, Marvelous Marvin Hagler, Thomas Hearns and Sugar Ray Leonard and their battles in and out of the ring. Roberto Durán, Marvin Hagler, Thomas Hearns, Sugar Ray Leonard Added on Paramount 2022-10-04. Added on Showtime 2022-05-14, leaving 2024-08-06.