As spring approaches, the Kilchers prepare for a potentially devastating wildfire season. But when COVID-19 threatens the homestead and crews are evacuated, the family must come together and adapt like never before.

An unprecedented new chapter kicks off on the homestead as the Kilchers film themselves coping with Alaska's stay-at-home order amid the COVID-19 pandemic. Resources must be stretched, homeschooling proves difficult and Atz Lee's PTSD resurfaces.

As supply chains in Alaska are disrupted, Jane and Eve focus on maximising food supplies; the cattle drive is threatened by a runaway stallion; Eivin suffers a serious injury in his workshop; Atz Sr requires emergency surgery.

Kilcher Road is threatened by a dangerous flood and Otto must repair the vital road before it's washed away; Eve struggles to homeschool her kids; Jane and August score big on a deep-sea fishing trip; Atz Sr recovers from his surgery.

While transporting calves to the Head of the Bay by boat, Otto, Charlotte, and August are marooned; still struggling with PTSD, Atz Lee works with his son Etienne to finish the insulation on his back country build; Jewel visits the homestead.

The Kilchers take advantage of the high summer's extra daylight to forge ahead; Atz Lee uses a helicopter to haul in vital equipment.