Desc: Avengers: Đế Chế Ultron: Directed by Joss Whedon. With Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Chris Evans. 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.