As the Magus moves his pieces across the grand cosmic chessboard, each faction—Galactus and his allies, Thanos and the Infinity Watch, Earth’s mightiest heroes, and even Doom and Kang—play unknowingly into his masterstroke. When the trap is sprung, chaos erupts: Earth’s heroes clash with Thanos and Warlock, while sinister doppelgängers descend upon the vulnerable.