Writer Cullen Bunn (The Sixth Gun) and artist Chris Cross (FIRESTORM) launch Superman and Batman on an utterly epic journey—one that will leave no corner of the DCU untouched!When Superman mysteriously vanishes from Earth, Batman must call upon some of the DCU's top mystics such as Dr. Occult to get some answers. Meanwhile, The Man of Steel finds himself fighting side by side with a strange Batman against a horde of Solomon Grundys. And just what is the sun doing to his powers? Batman, Doctor Occult, Detective Chimp and Klarion the Witchboy must face a magical Armageddon in the present as Superman is taken to meet the future Justice League at the Hall of Doom! How did things go so wrong — and can anything be done to stop it?