Catching Britain's Speeders

Storms bring travel chaos to the roads and Inspector Anton Sullivan braces against the weather as he attends a major incident in Runcorn where a roof has blown off and collapsed. In Northwich, PC Mike Clark pulls over a suspected drug driver, who pleads his case as a medical cannabis user, while PC Clark responds to a call for urgent backup from PC Niaz Waddington, who has been attacked on duty.