A four-car crash in Manchester's rush hour puts the patrollers under pressure and a family are left stranded at the side of the motorway when their vehicle conks out. Throughout the night, maintenance is carried out on the carriageways, which involves clearing up litter thrown out of car windows by unscrupulous drivers.

The entire motorway must be shut down after a high-speed motorbike crash on the Spaghetti Junction, just outside Birmingham. The patrollers worst fears are confirmed when they discover an injured man lying in the carriageway. Officers Mickey and Lee discover an abandoned caravan parked on the hard shoulder.