For better or worse, Tony Stark has devised a plan that won’t require him to put on the Iron Man suit anymore, and should allow Captain America, Thor, Black Widow, Hawkeye, and the Hulk to get some much needed R&R as well. His solution is Ultron, self-aware, self-teaching, artificial intelligence designed to help assess threats, and direct Stark’s Iron Legion of drones to battle evildoers instead.
The only problem? Ultron lacks the human touch, and his superior intellect quickly determines that life on Earth would go a lot smoother if he just got rid of Public Enemy No. 1: Human beings.