| 1: Pilot |
| Jun 3, 2012 |
| With the help of Vic and Henry, Longmire investigates a backcountry murder with ties to a tribal family. |
Rivr
| 1: Pilot |
| Jun 3, 2012 |
| With the help of Vic and Henry, Longmire investigates a backcountry murder with ties to a tribal family. |
| 2: The Dark Road |
| Jun 10, 2012 |
| Longmire and his team investigate the death of an exotic dancer with possible Amish roots. Cady's new relationship stirs up controversy. |
| 3: A Damn Shame |
| Jun 17, 2012 |
| Longmire uncovers long-buried family secrets when he probes the deaths of a man and his award-winning horses in a barn fire. |
| 4: The Cancer |
| Jun 24, 2012 |
| A fisherman discovers the bodies of two murder victims, including a teen from the Cheyenne reservation. |
| 5: Dog Soldier |
| Jul 1, 2012 |
| Walt and the team look into the disappearances of several Cheyenne foster children and an unregistered sex offender. |
| 6: The Worst Kind of Hunter |
| Jul 8, 2012 |
| Walt suspects a bear was baited to fatally attack a released murderer. Branch's retired uncle, a former sheriff, can't resist the lure of law enforcement. |
| 7: 8 Seconds |
| Jul 15, 2012 |
| 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. |
| 8: An Incredibly Beautiful Thing |
| Jul 22, 2012 |
| Henry uses his tracking abilities to locate an unstable young woman who may be involved in the murder of a gas-station owner. |
| 9: Dogs, Horses and Indians |
| Aug 5, 2012 |
| The Tribal Council president is found dead on county land but it s clear he died elsewhere and there is soon a large suspect list. Walt deals with feelings of betrayal when he uncovers Cady and Branch s affair. |
| 10: Unfinished Business |
| Aug 12, 2012 |
| In the first-season finale, a teen is murdered after being acquitted of raping a Cheyenne girl. Later, Walt is forced to finally confront his wife’s death. |