Alex and Harry attempt to achieve a lucrative security contract, but in the process they find themselves at odds with Ken, who is suspicious of the company they are dealing with. Meanwhile, Ken is approached by Sarah Blake (Carolyn Pickles), a market trader who appeals to him to help her and some fellow stall holders to fend off an extortionist who has been terrorizing them with his thugs. Assistance comes in the form of Ken and Rocky, whose involvement is intensified by the fact that Sarah is the widow of one of Ken's former colleagues from the fire service. Original Broadcast Date 20th October 1992.