When Tony Stark and Bruce Banner try to jump-start a dormant peacekeeping program called Ultron, things go horribly wrong and it's up to Earth's mightiest heroes to stop the villainous Ultron from enacting his terrible plan.

Avengers: Age of Ultron  is episode 76 of Superhero Century, the podcast where we watch every superhero movie of the 21st Century in chronological order.