A member of the public reports a car veering erratically across the M1 and Karl Jackson and Matt Cooling are sent to investigate. They catch the vehicle up and box it in at traffic lights on a slip road, where the driver, smelling of alcohol, is dragged out and refuses a breathalyser test. Jason Potts is called to a rush-hour crash on the A50, while Alex Boniface takes the lead in the pursuit of a stolen Audi.