In the oppressive, war-obsessed country of Celestial, those who believe in angels see them as dangerous monsters to be avoided at all costs. So when Archangel Uriel lands smack in the middle of its capital city under mysterious circumstances, she must blend in with the humans as she tries to find her siblings and end her own war. After years of hiding in plain sight in a search and rescue operation, a mysterious woman shows up with an odd request that makes Uriel and all around her question everything this universe holds. As she and her possibly-friend Imogen start the search, bodies of Uriel''''s siblings start turning up.