Fifteen-year-old Lucas Kane's life is forever changed when a new girl, Aza, comes to his tiny hometown of Crestone, Colorado and reveals to him the truth about his father who abandoned him when he was an infant. Aza takes Lucas to a training center in Sedona, Arizona where he learns he is the son of an archangel and the pawn in a battle between angels and demons. His adventure takes him across the Southwestern United States where he learns of Native American folklore and how it relates to his own story.