With the help of Vic and Henry, Longmire investigates a backcountry murder with ties to a tribal family.

Longmire uncovers long-buried family secrets when he probes the deaths of a man and his award-winning horses in a barn fire.

A wealthy beer distributor is brutally assaulted for a seemingly worthless painting; Vic's husband is jealous of her relationship with Walt; Branch's father uncovers information damaging to Walt's campaign.

When a wild horse is found dragging a dead body, Walt discovers evidence of an illegal rodeo at a local farm. Detective Fales comes to town to talk to Henry.