Charlie Fenton has just picked up his girlfriend, Lisa, from the train station, when they nearly run down a little boy Justin, who is saved at the last moment by his grandfather Alec Oxley. Oxley reports the incident to the police because he smells alcohol in Fenton's breath. When PC Rowan lets Fenton off with a warning, Oxley takes matters in his own hand Greengrass gets a very unwelcome visitor, his big brother Cyril. Cyril is on the lookout for a weekend cottage. But his wife Edith does not necessarily need to know. Claude is more interested in taking a ride in Cyril's Rolls Royce. Gina has got a new boyfriend, Steve, who is helping out at the pub. Nick is concerned about his future father-in-law, who seems to have lost his will to live after his wife's funeral.

Alec Formby and his fiancée Sonia Harding are on route with a radioactive isotope to a laboratory in Leeds and make a stop at the Aidensfield Arms to get something to eat. When they have finished their car has been stolen. The Police recover the car again after it has been involved in an accident, but the lead bottle containing the isotope is gone. Greengrass' brother Cyril calls on him with a business proposition He has bought a racing dog and needs a place to keep it for a couple of days. The dog is very fast and Greengrass races the dog without his brother's knowledge.