Crossroads to Crime 1960

Source: Web-Rip 544p. While on foot patrol, Police Constable Don Ross (Anthony Oliver) chances upon a gang of lorry hijackers operating from the back of a transport café. After seeing Diamond (George Murcell) and Johnny (David Graham) drive off in a car with the manageress, Connie Williams (Miriam Karlin), apparently being held hostage in the back seat, Ross jumps onto and clings to the vehicle's side.