Howard Hughes, from his beginnings as an eccentric young industrialist through his shocking final days as the world's most bizarre billionaire. In between, Hughes becomes a notorious Hollywood mogul and ladies man, builds an international aviation empire, designs and flies the infamous "Spruce Goose" and descends into a horrific abyss of paranoia and madness, all as seen through the eyes of his loyal business manager and right-hand man Noah Dietrich.