"To battle their greatest foe, the Avengers re-assemble! But as Earth's mightiest heroes reunite, they'll have to remember how to work as a team. And they'd better figure it out quickly, before Ultron's master plan kicks into high gear! The mechanical menace has the ultimate solution for the scourge of humanity: replace everyone on Earth with robots! First names on Ultron's list? The Avengers! But can the heroes overcome their own human weaknesses to defeat their flawless impostors? Plus: Years before the team forms, Bucky is captured, and Captain America fights alone--and there's something oddly familiar about that ... And when Bruce Banner is Hulk no more, can the Avengers figure out how to bring their angry green monster back? Do they even want to?"--Cover.