Earth's Mightiest Heroes and Gambit depart Avengers Mansion in search of the Master of Magnetism! The Avengers have questions about Onslaught, and Magneto may have the answers! In the old dominion state, the heroes discover the X-Men's long-time foe (alongside Rogue)...and then attack! The Vision and Thor clash with Rogue; while Quicksilver, Shell-head, and Cap challenge Magneto! However during the mêlée Gambit and the Scarlet Witch realize that there's something different about this Master of Magnetism. Is Magneto a changed man?