Following the events of DC's blockbuster storyline Absolute Power, the heroes of the core DC Universe have fought against the deep divisions in the world around them to usher in a new era of unity. And it's just in time, too -- because Darkseid has returned. Superman must gather every hero on Earth to hold the line against a very different version of the Lord of Apokolips, as they raise our cosmic defenses and prepare for war... and when the first blows land, the shock waves will ripple into every series in the DCU and shake the nature of their reality to its core! But little do they know... the greater threat is still to come. For there is another Earth: the Absolute Universe. Here, DC's biggest icons are coming of age with fewer advantages and facing greater opposition than ever before... while miraculously retaining the immutable heroism that has inspired fans for decades. But can they really protect the light that shines inside them when the world in which they live is hurtling toward a terrible destiny?