PC Eddie Santini tries to convince his lover, Jess Orton, to set him up with some drug dealers - he wants out of Sun Hill, and DS Timpney, his friend in Area Drugs, has promised him a place in the squad if Santini can get him evidence on them. At parade, Sgt. Bob Cryer assigns the relief a door-knocking campaign to warn the elderly residents of the area about two bogus callers posing as social workers who are responsible for a string of robberies. Leaving PC Hagen to cover for him, Santini meets Jessica, but not before hearing the culprits have been following the local Meals-On-Wheels van. Jessica has met up with an old friend, Ferguson, who is a big-time drugs importer. She wants Eddie to pose as her husband when they next meet to seal the deal. When Eddie returns to duty, Cryer is furious. An old army Major has had all his medals stolen by the bogus callers, and Santini had neglected to warn him. A desperate Santini gets Hagen to investigate the Major, and finds his claim is a scam.