A new sergeant arrives at Aidensfield police station, bringing plenty of radical ideas from his time in the city, much to the officers' disgust. When news gets out of his ambitious plans, which will leave Walker unemployed, Oscar decides to take a stand and rallies the troops.

PC Walker receives a tempting offer from an old friend, but as the proposition involves a spot of rule-bending on his part, the decision to go through with it could land him in serious trouble, especially as Sergeant Miller already seems less than impressed by the policeman's rebellious nature.

Bellamy tries to impress Miller by going it alone, while the arrival of tax inspector Derek Ford gets the residents of Aidensfield panicked. Vernon bears the brunt of Ford's wrath when his dodgy dealings and poor record-keeping are exposed, convincing the wheeler dealer the only way to avoid trouble is to fake his own suicide.

Clare finds herself under suspicion when a wild party ends in tragedy with a drugs-related death, and Miller is annoyed to have to reprimand Walker once again when he discovers his participation in the drunken revelling. David is put in a tricky situation when his Aunt Peggy arrives in Aidensfield and sets up an illegal vodka still, while Ventress is quick to reveal the newcomer's dubious history to Oscar and Gina.