Walt seeks closure for his wife's murder and Henry's case. Meanwhile, Branch is suspended but continues to investigate Jacob Nighthorse.
While Walt makes a breakthrough in the David Ridges case, Branch's conduct is worrisome. Henry has a setback in his trial. Vic decides what her future will be.
A man missing for 30 years turns up dead. Later, Henry makes a risky decision.
Walt deals with the repercussions from Henry's arrest and Branch's shooting. Looking for the shooter proves complicated when Branch reveals who shot him.
Walt and Branch investigate an apparent suicide that may be linked to Cady's accident. Walt and Henry must face up what took place in Denver when Detective Fales shows up with warrants.
Longmire links up the death of a game warden and a poached elk to an expensive supplement. Cady wakes up after Longmire concludes his sacrifice. Branch is closer to discovering what really happened to Cady.moreless
On Election Day, Walt and Branch see things with a new outlook as they race to find a hit-and-run driver.
An explosion on the reservation has the Cheyennes blaming an energy company's fracking. Branch hooks up again with Cady and finds some information he can use to his advantage in the election.
Contrary Warrior advises Walt about an alleged psychic's murder but it requires interpreting backward clues. Sheriff candidate Branch and Walt face off in a public debate.
Walt looks into the death of a shepherd and his dog in Absaroka's Basque community. Branch has thrown in with Jacob Nighthorse who is contributing to his campaign. Cady goes to Detective Fales for information about her mother's death.moreless
Walt investigates the world of underground poker games after the Tribal Council president, who had a gambling problem, is found dead in his car on county land. The list of suspects starts to mount when tribal politics are taken into consideration. Walt feels betrayed when he finds out about Cady and Branch's affair.moreless
Walt and his team look for a missing unregistered sex offender when several Cheyenne foster children go missing. The children at the foster home insist the others were taken by a "dog soldier" but Walt knows it wasn't a spirit who kidnapped the children.moreless
Long buried family secrets come to the surface after a man and his horses are killed in a barn fire.
When pallbearers lose control of a casket at a funeral, the deceased and a second unknown woman tumble out of the casket. The victim turns out to be a doctor at County Hospital. Now it's up to Beckett and Castle to determine if the world of bed-hopping physicians created murderous jealousy or if the doctor's work outside of the hospital got her killed. Gina attempt to bond with Alexis puts a strain on her relationship with Castle.moreless