Extreme snow and wind hits the West Midlands and causes chaos on the M6 for patrollers on night shift and when a pick-up truck flips upside down, a car heads the wrong way down the carriageway directly towards the crash site. While gritting teams are out in force trying to protect the roads, Paul and Aries fight in poor visibility to get a man to safety after he runs out of petrol in a live lane, while a driver on his way to Scotland is forced off the motorway when his windscreen wipers leave him with reduced visibility.