Oscar Blaketon gets into trouble when two young criminals steal his car and run away from an accident they have caused, because he will not account for his whereabouts at the time of the accident and did not report the car stolen. Meanwhile the two criminals, Joey Sharp and Frank Collins, supplies drugs to the schoolgirl Lizzie Tyler and her friend Babs. Greengrass overhears how PC Bradley talks to a friend about buying classic motorcycles and spots an opportunity to earn a quit or two. He even knows where hen can get his hands on some if he can get Bernie Scripps to assemble them.

After a charity concert at Eltering Church it is discovered that two candlesticks have been stolen. When Alf Ventress goes to the church with some flowers he is knocked down and the safe is broken into as well. Prime suspect is Simon Cutler, who has previously been suspected of a break-in. He is also dating the reverend's daughter Karen. Claude Greengrass promises Mrs. Benton to take her champion poodle Harvey to the annual dog competition and she leaves specific instructions on what to do. Champion poodle or not Harvey is first and foremost a dog and he uses the first opportunity to clear out looking for adventure. This situation calls for desperate measures. Poor Alfred!