Kael is a young angel in warrior training. He commands his own training platoon under the watchful eyes of his older brothers, including his life-long hero and soon-to-be general, Archangel Michael. His hard work crumbles and his loyalty is tested when he befriends Manuel, an undefeated warrior trainee, who has an insatiable appetite for glory and fame. Their friendship unnerves the oldest and wisest of their brothers and echoes the deepest tragedy in Heaven's history: Lucifer's Rebellion. Only time will tell if Kael and Manuel can put their selfish desires aside and do what is right, or if history is doomed to repeat itself.