Ruth is concerned about becoming increasingly forgetful, and is even more perturbed when Martin offers to perform a mini mental state examination. It confirms she is showing early signs of dementia. Meanwhile, Louisa plans a special evening to celebrate Martin's birthday, and Al decides to throw Morwenna a surprise engagement party on the same night. There are also problems when Louisa's class tutorial ends in disaster.

Martin investigates after local farmer Dennis Thorpe shoots at Robert for taking some of his eggs. Meanwhile, Emily returns to the surgery to see Martin after her acne medication caused a bad reaction, a secret bidder buys the Crab and Lobster pub, and Louisa ponders if she should see a fertility specialist.