Down by the River
Episode: 4x01 | Airdate: Sep 10, 2015 (60 min)
The team struggles with the fallout from Branch's confrontation with Barlow, and Walt's crusade to bring Nighthorse to justice spins out of control.
Episodes
War Eagle
Episode: 4x02 | Airdate: Sep 10, 2015 (60 min)
Walt is forced to split his focus between new evidence in a personal case, and the murder of a caretaker at a former Japanese internment camp.
High Noon
Episode: 4x03 | Airdate: Sep 10, 2015 (60 min)
The investigation of Nighthorse heats up, but not in the way that Walt was hoping for. Cady makes a shocking discovery.
Four Arrows
Episode: 4x04 | Airdate: Sep 10, 2015 (60 min)
A body found in the luggage of a tour bus further complicates Walt's troubles with Nighthorse. Henry makes a bold move to help a mother and son.
Help Wanted
Episode: 4x05 | Airdate: Sep 10, 2015 (60 min)
When the husband of a former soldier is assaulted during an apparent robbery, Walt is drawn into an emotionally charged investigation.
The Calling Back
Episode: 4x06 | Airdate: Sep 10, 2015 (60 min)
A young Native American girl is raped on the reservation, which sparks new, volatile tensions between local oil rig workers and the Cheyenne people.
Highway Robbery
Episode: 4x07 | Airdate: Sep 10, 2015 (60 min)
A highway robbery sets off an investigation into a strange relationship, while Walt struggles to let go of the past.
Hector Lives
Episode: 4x08 | Airdate: Sep 10, 2015 (60 min)
When a former suspect in a rape case ends up dead in another county, Walt and Vic aren't convinced the death is an accident.
Shotgun
Episode: 4x09 | Airdate: Sep 10, 2015 (60 min)
Henry's attempt at justice backfires, resulting in new problems for him and a new investigation for Walt.
What Happens on the Rez...
Episode: 4x10 | Airdate: Sep 10, 2015 (60 min)
The line between justice and the law gets even blurrier for Henry and Walt as their hunt for a killer intensifies.