Generation Iron: Natty 4 Life

In "Generation Iron: Natty 4 Life," top professional bodybuilders compete for the coveted Natural Olympia title in a league dedicated to purity, as they push their physiques to new heights without the aid of performance-enhancing drugs. With the rapid evolution of drug use across sports and entertainment, natural bodybuilding is under scrutiny like never before - can this league guarantee its competitors are truly natural? The film shines a light on the lives of Kai Greene and Mike O'Hearn, two top pros vying for the title and facing the challenges that come with it.