On the outskirts of Scunthorpe, PCs Billy Stead and Nathan Saltmer are on the tail of a possible cloned BMW, but the driver attempts a getaway, running out of road and hitting a dead end. Determined not to give himself up, he makes a run for it across a field. What has he got to hide? On the M62, Billy is partnered with Sgt Lucy Hunnybun in pursuit of a vehicle suspected to be involved in multiple car thefts the previous night.

PC Joe Gorman races to stop a potential drink driver before there's a collision. And cops stop a driver who hits almost 100mph. Will a drugs test reveal anything?