Newly qualified vet Patrick is called out to help a farmer whose cow has been struggling all night with a difficult labour. Patrick discovers her calf is breached, and has to reposition it. However, once it's in the correct position, a shock discovery makes his job twice as precarious. Back in Castlewellan, a farmer arrives with a two-week-old lamb that's developed a limp. Some antibiotics and a dose of anti-inflammatories will help the lamb back on its feet. However, vet Maeve notices its eyes are milky white and she has to use all her expertise and knowledge to save the lamb's sight.