"Longmire" is a crime drama that focuses on a Wyoming sheriff named Walt Longmire who returns to work after his wife's death due to what is originally believed to be cancer. Sheriff Longmire investigates crimes within his jurisdiction with the help of his friends and daughter, while campaigning for re-election against one of his deputies.
Walt Longmire serves the fictional Absaroka County and is known to be charismatic, dedicated and unflappable. Despite his outward appearance, Longmire is having trouble coping with the loss of his wife and is clearly a man is psychic repair.
The show's first season begins only one year after the death of Longmire's wife, during which time Longmire has relegated most of the police duties to deputies Branch Connally and "The Ferg", while Longmire focuses on his re-election. Longmire's adult daughter eventually convinces him to return to police work in an attempt to help him move on with his life after the death of his wife. Unbeknownst to Longmire, his daughter is dating Connally, his election rival and deputy. Thanks to a Denver detective, it is later revealed that Longmire's wife was actually murdered.
The rest of the series focuses on sorting out the death of Longmire's wife, the re-election and Longmire coming to grips with himself and repairing his own life.