In this title, best-selling writers Geoff Johns (Infinite Crisis and Green Lantern) and James Robinson (Starman and JSA: The Golden Age) unleash a massive storyline that changes Superman's life forever! After a devastating battle with the alien villain Brainiac, The Man of Steel learns that a piece of his home planet Krypton survived - the shrunken, bottled city of Kandor! And when the city is grown to normal size, it looks like Superman finally has the connection to his past he's been missing all his life, as thousands of Kryptonians are suddenly able to walk the Earth. But his happiness soon turns to dread as relations between the Kryptonians and humans dissolve, and the two cultures face a massive clash! This is just the beginning of a mega-event that alters The Man of Tomorrow down to his core.