Shaun and Grant stop a gang of car thieves on the job - and then make a sensational discovery. Biggers helps transform the streets of Clacton into a helipad to allow the air ambulance to land, while Emily, Steve and Russ nick two dodgy geezers with a couple of dodgy vans. Also this week, officers conduct an automatic number plate recognition sting operation outside Essex's biggest shopping centre. Andy and Biggers help get the M25 moving after a three-car shunt brings the mighty motorway to a standstill. Elsewhere in the county, Gerry arrests an 18-year-old youth who fancies himself an expert in the law. And Andy helps an officer who has dropped his handcuffs down a drain...