Four Arrows

S4 E4: On the day that the Four Arrows casino opens, Walt returns to work after a voluntary leave of absence to find that Vic has brought in a new deputy, Eamonn O’Neill (guest star Josh Cooke) to help out. While investigating a suspicious death in a traffic accident, Walt is also called in by Tribal Police Chief, Mathias (recurring guest star Zahn McClarnon) to look into Henry’s involvement with a domestic dispute on the Rez.