Born Rocco Marchegiano, Marciano grew up during the Great Depression and by 1947 he was the darling of the New York Fight scene. Later that year he turned professional and would embark on an incredible career that not only saw him crowned World Champion but also ended without a loss; still a modern day record in the Heavyweight division. His record stands as the most imperial in boxing history with a colossal 43 knockouts from 49 wins. This film takes an in depth look at one the greatest fighters to grace the canvas.