The Kilchers find themselves unprepared for winter.

The family joins forces to protect Shane's cabin from winter's fury.

On the homestead, each season brings a new battle for survival.

A never-before-seen, lost episode shows Atz Lee's plans to renew his vows.

A behind-the-scenes episode relives memorable moments of the Kilchers.

An earthquake hits Alaska and the Kilcher family scrambles to recover.

The Kilchers rush to make headway on time-sensitive projects.

With Otto's surgery looming, the rush to complete projects becomes urgent.

Otto makes the decision to have potentially life-threatening surgery.

Otto's son Levi comes to Alaska to help lead the cattle drive.

The Kilchers gather for Thanksgiving dinner at the old family barn.

Atz Sr. prepares for a visit from his daughter, singer-songwriter Jewel.

Jane trolls for the biggest fish of her life, while the men salvage lumber.

Otto enlists the help of a helicopter to move a massive greenhouse.

The Kilchers celebrate their most unforgettable Christmas ever.

Tensions flare between Otto and August before August leaves for college.