Atz Sr. reveals his Fox Cabin legacy build after months of backbreaking effort. As winter begins, Eivin scrambles to complete a vital project he'd fallen behind on. Jane and Atz Lee attempt to airlift a piano to their remote cabin before snowfall.

The Kilchers rush to prepare for the arrival of winter. Otto saves a friend's home from sinking into the bay. The stress of parenting during the pandemic pushes Eve to her breaking point and Atz Sr. stalks a menacing bear on the homestead.

As the Fox Cabin nears completion, Atz Sr. unites seven Kilcher siblings to finish the interior of his legacy rebuild. Jane, August and Etienne embark on the final fishing trip of the year and Eivin suffers a devastating loss.

As fall approaches, the Kilchers kick into high gear. A large bull moose stalks the homestead and Eivin must keep his family safe. Atz Sr. hunts bear and nearly loses a horse. Otto begins the massive cleanup from an explosive wildfire prevention project.

To protect the homestead from wildfires, Otto dynamites a reservoir in case of an emergency. Charlotte goes fishing with Jane but finds it's not for her. After falling behind on the Fox Cabin, Atz Sr. enlists the help of his family to get back on track.

The Kilchers share their most loved homestead recipes.

The family reflects on moments of friendship and mishaps with animals.

An earthquake strikes Homer, triggering a tsunami warning and evacuation. Eivin and Eve traverse treacherous mountain terrain on their first-ever goat hunt and Charlotte creates a special memorial for victims of COVID-19.

The Kilchers take advantage of the high summer's extra daylight to forge ahead. Atz Lee uses a helicopter to haul in vital equipment. Jane and Charlotte battle an angry nest of wasps, while Eivin fells trees and clears land for an upgraded chicken coop.

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 backcountry build and Jewel visits the homestead.

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 and Atz Sr. recovers from his surgery.

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

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

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.

The Kilchers look back on the last decade of their lives homesteading in the Alaskan wilderness. From their first moments on camera to never-before-seen footage, the family relives 10 years of danger, adventure and ingenuity on the last frontier.