A rare-breed pony is in danger when she suffers a prolapsed uterus soon after giving birth, and while it's a relatively common problem in sheep and cows, it's the first time Shona has ever encountered the condition in a mare. A Great Dane called Phoebe has suffered a debilitating knee injury and Julian has a plan to fix the problem with complex surgery, and Peter heads out to treat a not-so-micro pig, who lives in the back garden of the man who runs his local chip shop.

Julian rushes into surgery with a Shih Tzu called Walter.