Earth's Mightiest Heroes have returned from the stars - but on the world they left behind, new threats have emerged. In one cataclysmic day, the face of the Marvel Universe will change forever. and the fight for Earth's future will begin. Smasher, Sunspot and Cannonball find themselves trapped and prisoners of A.I.M.'s Scientist Supreme! Shang-Chi takes on the Gorgon in a fight to the death for control of the Hand! The City of the Dead will rise! And Starbrand must confront the ghosts of his past!