Colonel Branson (Thomas Gibson), head of a secret and covert division of the NSA, keeps the Shadow Wolves operating albeit now independent and rogue. His anger after his daughter was killed in Afghanistan training civilians drives him to defend "his" America and her borders by all means legal or otherwise. When ISIS terrorists begin to sneak across the US Border into Arizona, Branson alerts the Shadow Wolves to track and stop them. Branson sends Eric Shaw (Cody Walker), his most deadly and effective agent, to join up with the Shadow Wolves. The Wolves are led by Nabahe (Graham Greene), a Navajo honored military veteran, and an old colleague of Branson's. At the same time in London Lady Milton-Simon (Louise Lombard), head of an MI6 anti-terrorist division, sends out her elite agent, Major McLaren (Tom Hutch), to track a terrorist named Khan (Solomon Shiv) who has a personal vendetta against the US and the Shadow Wolves. Lady Milton and McLaren learn Khan is heading to Mexico to be ...

　　本剧根据Tony Hillerman的“Leaphorn & Chee”系列小说改编，拥有一个全美国原住民阵容的编剧室。Graham Roland（《杰克·莱恩》）打造，Vince Calandra（《利器》）担任剧集运作人，Chris Eyre（《烟火讯号》）为试播集导演，三位将联同George R.R. Martin、Robert Redford、主演Zahn McClarnon一起执行制片。
　　故事发生在1971年莫纽门特谷地附近纳瓦霍族保留地的一个偏远前哨站，部落执法官里的Joe Leaphorn警督（Zahn McClarnon 饰）被一系列看似无关的案件搞得应接不暇。他越是接近真相，越是揭露出自己过往的创伤。Leaphorn和新来的警官Jim Chee（Kiowa Gordon 饰）一起调查着这些案件，而Chee也有些年轻时在保留地的一些宿怨需要解决。两人一起在通往救赎的道路上，与邪恶势力、彼此和他们自己的心魔战斗。

跟随两个疏远的兄弟姐妹回到他们曾经认识和喜爱的广阔牧场。