A critical injury leaves the younger Kilchers to maintain the homestead.
Otto fights for his life after being trampled by a cow in a snowstorm.
Eivin and August bear the burden of Otto's injury while he recovers.
Atz Sr. joins a group of veterans to bring water to a local homesteader.
Eivin considers expanding the Kilchers' reach by becoming a bush pilot.
Eivin helps August with a mind-clearing trip to Red Mountain.
Etienne endures a homestead right of passage in the wilderness.