Railroad section-chief Bruce Gough is forced to bring out the big guns, a 105mm howitzer with military-grade explosives to trigger man-made avalanches along the track.

Conductor Harry Ross has worked on the railroad for over 40 years. Using his own money, he purchases and delivers newspapers to his friends, the off-gridders.

The Durr brothers have been off-gridders since the '70s, surviving multiple bear attacks.

Off gridder Dan Mawhinney decides to sell his cabin, but first he must find a buyer.

The Alaskan railroad team must shoot down ice that has the potential to derail a train.

Moose like to use the train tracks to walk on because it is easier terrain, but it puts them in danger of being hit by a speeding train.

Melting ice can quickly create a mudslide and destroy large parts of the railroad.

Jim and Nancy James are left without electricity when a porcupine eats through their generator cable. But, the ever resourceful Jim has a plan for the porcupine to pay for the damage.

Nancy and Jim James face hungry bears emerging from hibernation as they trek to an abandoned cabin.

The railroad police are called in when a 4-wheeled trespasser is stuck on the line ahead of the speeding train. Can they get it off the tracks in time?

See why this Alaskan treehouse might not be move-in ready for these two homebuyers.

There’s access from the air and the road, which is a plus. But the home has no plumbing, only an outhouse and a sauna for bathing. Michael isn’t excited by the idea of hauling water or walking Miranda to the bathroom every day.

The Ranch House is minutes outside of Talkeetna and has the old cabin charm this couple is looking for, but the repairs to update and snooping bears might be too much.

Montana Creek offers a peaceful setting for this home, but it also has a rich Alaskan history. It’s an old trapper cabin built in 1970 with a modern addition, but will the historical logs cause trouble down the line?

Sitting on about 40 acres of land is a rustic log cabin with a ¼ mile long dirt driveway that has been beaten up by rough Alaskan winters. There is no indoor plumbing, but it has one of the most unusual outdoor showers they’ve ever seen.

This Alaskan home is perfect for the millionaire who wants a view and has eccentric taste.