It explores the life of one of history's most fascinating figures, a cowboy, soldier, statesman, conservationist, adventurer, reformer, author, and finally, U.S. president. Featuring over five hours of expert interviews, rich archival material, and vivid live-action sequences, this two-part documentary charts Roosevelt's journey from his sickly childhood to being a champion for the working man to becoming, at age 42, the youngest president of the United States, whose legacy and impact on progressive political policies reverberate today.