When David Cross discovers his pregnant foster mom crouching at the foot of his bed breathing yellow vapor, he knows it's time to leave. Armed with only his backpack and trusted instincts, he braves the world on his own, triggering events that end in a brutal attack by Demons and a daring rescue from Angels. He awakens in a Monastery on the icy mountains of Alaska where he discovers that he is a Nephilim - a half angel. The purpose of their existence: to fight Demons and protect humans. But in this place of astounding powers and rampant free will, David remains in peril. For when he is...