Bodybuilders consider themselves athletes, some also as "body artists" who are misunderstood by their critics. Bizarre body cult or simply unhealthy - without a doubt, bodybuilding requires the absolute will to perform at its best and a special physique. In the second part of the successful "Generation Iron" series, you also get a fascinating insight into the lives of the top stars, who compete even tougher in the age of social media. Kai Greene, the physical Gesamtkunstwerk, is now also trying his luck in Hollywood. From Down Under comes the new super talent Calum von Moger, who talks about his way to the top. Rich Piana, on the other hand, who has 1.2 million followers on Instagram, talks openly about his extraordinary steroid consumption. Bodybuilding women are also vying for recognition, including Iris Kyle, the 10-time Ms Olympian, one of the film's female stars. After Generation Iron, now comes the eagerly awaited second part with Arnold Schwarzenegger!