On the back roads of a broader town, a botched Mexican cartel arms deal leaves several dead and a bag of money missing. A retired sheriff with violent tendencies (Ian McShane) and his young replacement with a dark past (Patrick Wilson) must join forces to investigate the source of the deal and protect the town residents from a mysterious and vicious cartel hitman, Atticus (John Leguizamo). In search of the missing loot, Atticus systematically eliminates anyone who crosses his path. After discovering that the new sheriff's girlfriend is on the hit list, the lawmen must abandon their code of ethics in order to even the playing field.