Episode 1
A snowstorm and faulty equipment threatens the freight crew's journey as they race to deliver a heavy load. In the woods Jim and Nancy meet an off grid couple.
Episode 2
Heading to the highest point on the railroad a train battles north to make a crucial delivery. Off grid things get steamy as JT and Marvin build a traditional bath.
Episode 3
A quarter of a billion dollars' worth of military hardware is on board the Alaskan railway, but a rogue gunman threatens to derail the journey.
Episode 4
After an accident, veteran off-gridder Jim James attempts to reach the hospital by train, but obstacles may put him in jeopardy.
Episode 5
In the wilderness, homesteaders team up to track down an abandoned cabin washed down stream and trapped in ice. Plus, a freight crew dodges intruders.
Episode 6
Tempers flare as a train runs into brake problems and a derailment leaves maintenance teams stranded. Off grid, homesteaders avert a fire but are left without heat.
Episode 7
A communications shutdown leaves a train, hauling the biggest load ever moved on the Alaska Railroad, hurtling towards a 'dead zone'.
Episode 8
In Alaska, the spring thaw puts the railroad into meltdown mode and a freight train is stalled on the line's highest bridge by the infamous Hurricane Gulch.