North Dakota, 1999. Landreaux Iron accidentally shoots and kills five-year-old Dusty Ravich, the son of his neighbors. The two families have always been close; Dusty was best friends with Landreaux's son LaRose. Horrified, Landreaux turns to tradition - prayer in an Ojibwe sweat lodge - for guidance, and finds a way forward. Following an ancient means of atonement, he and his wife will give LaRose to the grieving Ravich family. "Our son will be your son now," they say. As the years pass, LaRose becomes the linchpin linking the Irons and the Raviches. But when a vengeful young man with a grudge against Landreaux begins hurling accusations of a cover-up the day Dusty died, he threatens the tenuous peace that has kept these two fragile families whole.