In Glasgow, vehicle technician Mark rushes to help a driver who has broken down on the hard shoulder of the motorway, while Kevin and Rob of a heavy recovery crew have their work cut out freeing lorries that have got stuck in snow on the A1M in the north-east of England. A school is forced to evacuate its pupils when Storm Caroline lashes the Orkneys, but one of the vehicles breaks down by the sea wall with 33 children on board.
