Sheriff Grady Sullivan returns to Canyon County, Idaho, after his second tour in Afghanistan to find his department in disorder and his authority undermined. He’s determined to restore discipline, but he soon finds himself fighting for his job. The bright spot in his life is kindred soul Edward Clayton. But Edward isn't just raising dairy cows, and Grady is soon pulled into Edward’s Underground Railroad for illegal kids. As noble as Edward’s work is, it’s illegal, and Grady is suddenly faced with losing everything he’s worked for and everything that matters to him as he’s forced to choose between Edward and the work that has always defined him.