As the final days of their builds approach, the builders work to complete their cabins. Jeff Erickson helicopters in the remaining furniture for his cabin, Chris Sewell's team works hard through the night to get the interior floors installed at Judd Lake and Chappie's team pushes themselves to finish the cabin's ladders, kitchen and master bedroom at East Butterfly Lake.

As winter barrels down on Alaska, the builders scramble to complete their heating systems. Chappie must climb an extremely tall ladder to cut a hole in his roof, Jeff and his friend Andy build a hearth and Chris fixes a leak in his chimney so he can complete work indoors.

Chris gets some much needed help from family to work on his interior, a floatplane with engine problems brings Chappie's build site to a standstill and Jeff makes a critical error while building the water tank system for his cabin.

Jeff struggles with his front deck, Chappie's team finds a major error while building the exterior insulation and Chris Sewell runs out of building materials.

Chappie's team struggles to lift 600-pound rafters onto the cabin's roof. Then, Chris works on drying in his cabin while Jeff begins installing his cabin's windows.

Chappie Cook's team runs into bears and sinking boats while hauling scaffolding materials, Jeff Erickson carefully begins to construct his slippery roof and Chris Sewell works tirelessly to install all the timber walls of his cabin.

A SkyCrane helicopter delivers a whopping 17,000 pounds of materials for Chris Sewell's cabin kit, Jeff Erickson fights the pouring rain and cold temperatures to stay on schedule and Chappie Cook's crew struggles to lift 20-foot balloon walls without heavy equipment.

A new season of builders brave the Alaskan elements to construct off-the-grid cabins. Jeff Erickson takes on a challenging cliffside build, Chappie Cook's team struggles to get materials to the site without roads and first-time builder Chris Sewell faces some harsh realities about his foundation.