In this first episode of the new series, the traffic cops clamp down on young drivers causing danger on north Yorkshire's roads. In the Yorkshire Dales, the traffic cops hunt down a young man believed to be drug driving who's failed to stop in a suspected stolen car and escaped on foot into fields. On the outskirts of York, officers suspect drugs are involved when a young driver smashes head-on into a lorry at speed. Near Selby, cops are forced to use a stinger and puncture three tyres in a bid to try and stop a repeat drunk and drugged driver, who seems determined to avoid arrest at all costs. And officers are left shocked when they stop a drug driver who's just been released from custody, but then gets behind the wheel again while still testing positive.

A prolific car thief with a string of convictions under his belt crashes and rolls a stolen car at over 100mph, while in Harrogate the hunt for a cloned car and disqualified driver leads to a high-speed pursuit. The suspect leaps from the moving car and leaves it driverless, heading downhill straight towards a busy main road during the rush hour.