Ashley's midwife ventures out to the Seldens' cabin for a check-up. It's the first time Ashley and Tyler will be able to hear their baby's heartbeat.

Following in the footsteps of his father, Charlie continues work on his very own Alaskan home. The race is on to finish before winter.

Tyler encounters a flock of sandhill cranes while on his journey back to the refuge. They're a small reminder of his childhood home in Nebraska.

After a health scare forced him to spend several months in the lower 48, Bob prepares to return home to his cabin.

The Seldens enlist the help of Tyler's entire family to build their forever-home, and learn they're living his father's dream.

Edna and Heimo see off Krin and Colby after only a week together in Alaska. It's been a bitter-sweet trip.

The staff travel to Colorado Gators and Reptile Park to address an infected arm of a 500-pund gator. However, getting an alligator immobilized is immensely difficult.

Verging on desperation, Charlie finally spots a moose to stalk; and that moose sounds less than pleased about it.

Facing the bitter cold and a lack of snow, pregnant Ashley and Tyler are cooped up inside their tiny cabin, patiently awaiting their third family member.

Brother and sister Daniel and Susan Hayden return to their parents' former cabin on the lake, which served as their childhood home.

Charlie is about to build his first cabin!

After weeks of hunting and worrying they won't get any meant, Heimo is finally successful!

Charlie Jagow has lived in the bush his whole life, but now he wants to build his own cabin and start his own traplines.

Oatmeal has made Ashley gag more than once.

Tyler's family sends them up with boxes of gifts for the holidays, and some gifts are sillier than others!

While building their cabin, Krin and Heimo carve ornaments from cottonwood!

In this digital exclusive, see Bob build the boat he uses to take his daughter, his dog, and himself back to the refuge.

Ashley explains the importance of getting a moose while showing off their stash of dehydrated veggies.

All of the Korth daughters have landed to help their parents prepare their newest cabin!

Bob reflects on his daughter's strength as they unpack.

When the Seldens are used to two full days of cleaning when they get to their cabin, a little bit of dust and dirt is nothing.

Tyler got a moose! Now he and Ashley have to get it back to camp.

Tyler goes back to the site of his moose kill to find he isn't the only one interested in the meat.

After speaking to Talicia, Nancy decides to travel to the cabin to see Bob.

Minnie and Krin are in charge of finding meat while their dad finishes the cabin.

Tyler discusses his fears about having a baby in the wilderness.

Minnie, Krin, and Heimo go looking for a bear spotted a little too close to their camp.

Bob says a bittersweet goodbye to his home, but has big plans for his future.

Before Rhonda leaves the refuge, there a few things she needs to do!

Over a delicious meal, Nancy and Bob reminisce on old times.

Tyler's family sends them up with boxes of gifts for the holidays, and some gifts are sillier than others!

Oatmeal has made Ashley gag more than once.