One man's obsession to unravel a mystery leads to an arduous journey, a violent confrontation, a decision that can't be unmade, and the everlasting weight of unintended consequences.Southwest Texas. 1883. A Texas Ranger comes upon a horse that has been savagely beaten and killed. Soon he learns of the murder of another horse in a nearby town-another white horse. Setting aside other duties, he commits to finding the killer. When a third white horse is slain ritualistically, the Ranger vows to not only find the killer, but to stop him once and for all.Why are the animals being killed? Who is doing it? Can the Ranger find and stop the slayer? And if so, at what cost?