With time running out, the freight crew struggle to make their delivery to a salvage crew stranded in the wilderness and Jim James returns from town with a huge surprise for his wife Nancy.
A homesteader races to airlift his stranded snow machine out of the frozen tundra; disaster strikes when a couple spends their first winter alone in the wilderness.
Freezing temperatures threaten a fresh water supply; J.T. Evans plans to bring a taste of the tropics to Alaska.
A couple must move their cabin away from a rapidly rising river; a leaky roof must be replaced before a storm; an avalanche threatens to derail a freight train.
A quarter of a billion dollars' worth of military hardware is on board, but a rogue gunman threatens to derail the journey. Off grid, Nancy and Jim face challenges during an ambitious cabin build.
In the woods Jim and Nancy James challenge a wannabe off grid couple, and Jennifer Hawks tries to find a missing settler. Meanwhile, the freight struggles to deliver a heavy load.
A five-hour, real-time train ride through Alaska's frozen wilderness provides the sights and sounds, mile by mile, of an epic journey through America's Last Frontier.
After an accident, veteran off-gridder Jim James attempts to reach the hospital by train, but obstacles may put him in jeopardy. Elsewhere, the freight crew fights to open up a port in lockdown.
A communications shutdown leaves a train hauling the biggest load ever moved on the Alaska Railroad hurtling towards a ‘dead zone’. Off-grid homesteaders tackle the challenge of living off the land in very different ways.
The freight train battles north to make a crucial delivery, heading to the highest point on the Alaska Railroad; and off-the-grid, things get steamy as old-timers JT and Marvin build a traditional bath.
Tempers flare as an extremely heavy train leads to brake problems and a derailment leaves maintenance teams stranded. Off grid, homesteaders narrowly avert a fire but are left without heat.
A freight crew racing towards Anchorage encounter an icy challenge as they dodge intruders on the track. In the wilderness, homesteaders team up to search for an abandoned cabin washed down stream and trapped in ice.
In Alaska the spring thaw puts the railroad into meltdown mode and a freight train is stalled on the line's highest bridge – the infamous Hurricane Gulch.