Louisa faces off with love rival Carrie in a battle for Martin's affections, and romance is in the air for Aunt Joan, who gains an admirer in the form of Edward. Elsewhere, Al makes a surprise reappearance and PC Penhale celebrates his birthday.

News of Martin and Louisa's engagement spreads rapidly through the village, and Aunt Joan is annoyed to hear about it from Dave rather than her nephew. Al steps in to help as Bert struggles to keep the restaurant afloat, while the doctor is puzzled when he learns Beth's knee replacement wound is failing to respond to the medication he prescribed.