A massive earthquake hits southern Alaska; the Kilcher family scrambles to recover and works to reopen vital access roads; Atz Lee races toward his dream of a new remote homestead to aid in recovery, creating waves with his wife, Jane.
Still reeling from the earthquake, the Kilchers rush to make headway on time sensitive projects. Otto, Charlotte, and Eivin travel to rescue a family relic. The first fishing trip of the year leaves Eve and Jane lost at sea.
The rush to complete projects intensifies as Otto's surgery looms; the herd's food supply is threatened; Atz Lee and Jane reunite after a month apart.
After years of procrastination, Otto goes under the knife; Jane must take care of the farm and deliver her first calf alone; Eivin and Atz Lee scout the Head of the Bay, but their findings won't ease Otto's concerns.
With Otto recovering from surgery, Levi heads to Alaska to lead the annual spring cattle drive with Eivin; Otto's unwillingness to step aside puts him in danger.
The Kilchers gather for Thanksgiving dinner at the old family barn and show thanks to friends and family that helped out in the past year.
Otto puts his recovery at risk to help save a paralyzed cow; Jane and Atz Lee put their differences aside to prepare for winter; Atz Senior prepares for a very special visitor: his daughter and singer-songwriter, Jewel.
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n a dangerous homestead first, Otto flies a massive greenhouse to a new location using a helicopter. Eve takes on the role of provider and learns a new skill to feed her family, while Atz Lee risks his recovery to continue his cabin build alone.
The Kilchers create homemade gifts for their loved ones; Otto has an explosive gift for Charlotte; Jane builds a musical present for Atz Lee; Eivin constructs a dual-use vehicle.
Fall brings big changes to the homestead. Tensions flare between Otto and August in their last mission before August leaves for college. Atz Lee, Sr., and Jane work on Atz Lee's new cabin, but Jane still has doubts. Eivin builds a special surprise.
Frigid temperatures sweep into southern Alaska. The Kilchers need to get jobs done before the freeze. Otto and Eivin salvage the shores of Kachemak Bay, Atz Lee pushes to put a roof on his cabin before snowfall. Charlotte and Jane run into a predator.
Otto pays for his hernia surgery and ends up with gold fever; Jane and Eivin search a remote island for enough deer to last the winter; Atz Lee faces down old fears and reaches new heights as he races the freeze in order to complete his cabin.
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.