The return of the documentary following the emergency services and breakdown recovery teams risking their lives to come to motorists' aid.
In the Highlands, snowplough teams battle blizzards, ice, flooding and landslides to keep the roads open, whilst across the UK patrols fight snow, gales and icy conditions to reach motorists stranded in the cold.
In Scotland, bad weather has caused the small town of Lochcarron to be effectively cut off from the outside world after a huge landslide brings tonnes of rock and trees crashing down onto a vital road into the town.
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