Jonathan Hickman’s epic saga begins here! Earth’s Mightiest Heroes expand their sphere of influence to a global — even interplanetary — level, but who will answer Captain America’s call? When Earth is attacked, the new team’s first mission takes them to Mars — and sets them on a dangerous path filled with deadly, godlike enemies beyond anything they’ve faced before! Meanwhile, cascading multiversal incursions threaten all of reality — and only Tony Stark and his secretive Illuminati allies know it! Can Mister Fantastic, Black Panther, Black Bolt, Namor and Beast join Iron Man in saving the Multiverse — or is everything destined to die?