The Sixth Explosive Volume In The Popular Series From Grant Morrison! Superman, Batman, Wonder Woman, The Flash, Green Lantern, Aquaman and Martian Manhunter...each a mighty hero in their own right, possessed of power beyond mortal imagination. But together, united under a common banner, they are the ultimate, world-shaking, gob-smacking dream team - The Justice League of America! It's the biggest JLA story yet, a tale of Earth-shattering proportions - literally! Before the birth of this universe, there was Urgrund: the world of the Old Gods. Not much is known about them, besides the fact that they manufactured weapons beyond comprehension that tore infinity itself apart. The JLA face their greatest ever challenge when they learn the terrible truth: one of those weapons has survived.