The Kilchers look to the future as winter looms; Atz Sr passes on vital survival knowledge; Atz Lee embarks on a risky solo hunt to a remote and dangerous island; Eivin builds the ideal boat for his young family's adventures on the water.

Otto and Charlotte fight to round up their cattle; Atz Lee and Jane come to a decision about his cabin; Eivin and Eve take the new boat on a maiden fishing journey; Shane and Kelli brace for unexpected news about her health.