PC Foster, helped by ex-boxer Len Phillips, breaks up a gang of youngsters blocking the pavement. His unnecessarily rough treatment of the rowdies comes to the attention of Sgt. Blackitt, who sets about putting his house in order.

Lorry hi-jacks: too many, too well-planned and executed. Braithwaite goes 'under cover' as a lorry driver with a shady past. He's out in the cold - and vulnerable.