PC Walker and PC Bellamy give Malcolm Stainsby a lift to his home because of his bad legs. Stainsby has been away since the war, but his wife - or rather ex-wife - Diane says that her husband Malcolm is dead. She even has his death certificate to prove it. Stainsby claims that he has only recently regained his memory after a cinema he was in was hit by a flying bomb. David and Aunt Peggy surprises a mushroom collector on their land and Aunt Peggy discovers that some people will pay good money for mushrooms. And while all mushrooms are eatable their effect may differ quite a bit. Sergeant Miller books PC Younger on a driving course. But Younger only has a provisional driver's license and needs a lot of driving experience. He gets Rosie to give him driving lessons and soon the whole village puts more into their relationship than there actually is.