The tow truckers get a new enemy - Mother Nature - as sudden changes in temperatures throw up unforeseen challenges for the ice road rescuers.

It's Thord to the rescue when a storm slides a 20-ton transporter off the road and lands a car in a ditch. A driver's rookie error riles Bjorn on the mountain pass.

Bjord struggles to control his anger when a reckless move throws a trucker into a danger. Thord heads out to rescue a driver who made a similarly risky error.

Junior tow trucker Ole heads off on a major solo mission. Thor goes to the rescue of a carpenter, only to find he's not equipped for the task.

Boss Thord calls on his old mate Bjorn when a fish trailer needs urgent help. In the north, the team bring in the heavy machinery when a huge lorry overturns.

Thord gets a blast from the past when he goes to the rescue of his old driving instructor. Jo springs into action when a truck gets stuck deep in the forest.

A blizzard hits the mountains sending an injured Bjorn out on a risky mission. Thord throws caution to the wind when the notorious Gallows claim a new victim.

As the tough winter season comes to an end, Thord contemplates a new beginning as he meets up with a rival to discuss a potential expansion.