A young sheriff in an Old West town, seventh to take on the job, is actually the heir to an ancient family of shadow hunters.
He sets out to restore law and order to an isolated population that's being attacked by bandits who are also werewolves, because there's simply no one else who can do so. There, on the edge of the frontier, he encounters a tall and menacing man in black who's also in pursuit of the shadow the sheriff has come to dispel, although not for the same reasons.
Is he a werewolf or a warlock or worse? His nature is hidden in the dark, but the two are continually drawn together as they grapple with the supernatural threats surrounding them.