Following an explosion on the reservation and the discovery of a charred dead body, Walt is bombarded with public confrontation as the Cheyennes blame the blast on gas leaked from fracking by Newett Energy. Meanwhile, Branch reconnects with Cady and uncovers information that could help him in the election.
Widowed only a year, Longmire is man in psychic repair that buries his pain behind a brave face and dry wit. Struggling since his wife's passing and at the urging of his daughter, Cady, Longmire knows that the time has come to turn his life around. With the help of Vic, a female deputy new to the department, he becomes reinvigorated about his job and committed to running for re-election.
When Branch, an ambitious, young deputy decides to run against him for sheriff, Longmire feels betrayed but remains steadfast in his dedication to the community. Longmire often turns to close friend and confidant Henry Standing Bear for support as he sets out to rebuild both his personal and professional life, one step at a time.