Nick receives a few shocks when he and Jo return from honeymoon to find big changes have occurred in Aidensfield: Blaketon is now retired and running the post office, Mike Bradley is the new village bobby - and he has been promoted to sergeant. In his first case as Ashfordly's leading officer, Nick hunts down a saboteur at the local fair when a showman is left seriously injured. Meanwhile, Greengrass starts a feud with the very unpopular Trevor Lammas when his beloved dog Alfred is poisoned by Trevor's rat, and Ventress, Gina and Bernie also have a score to settle with Lammas

Mike's career hangs in the balance when a former racing driver dies in police custody while in his care and the racers cousin accuses him of murder. Forced to suspend his officer, Nick teams up with Detective Inspector Shiner to investigate and clear his officer's name, but he is shocked when he realises Mike isn't completely innocent. Meanwhile, Greengrass and Bernie Scripps buy an ex-police car from a car auction and start up a taxi firm. Via the old radio, they tune into police frequencies and overhear events at Ashfordly station, while Aunt Eileen bids farewell to Aidensfield for a new life in France.