THE APOCALYPSE HAS COME! It's happening! The armies of the Earth are launching their long-awaited invasion of Heaven, and the battle to end all battles begins. The Humen have built a tower to scale the sky, and they've found a new commander to lead them. What will Ferren and the Residuals do now? Will they be the hunted or the hunters? Dare they go up to Heaven to fight the invaders?