Road policing officer Sgt Gladwin and PC Hammond are called out when a van with a trailer crashes on a motorway on the Avon and Somerset border. There is debris all over the road threatening the lives of unsuspecting motorists coming up at speed towards the metal panels strewn across the carriageway in the dark.

The first call of the night for the Gloucestershire officers is to an RTC in the rural country lanes, where the driver has misjudged a corner and her car has landed on its roof. Meanwhile, a call comes through to control from a member of public about suspected snakes abandoned in pillowcases at the side of the road, and response officers spot a driver in town driving erratically.