Christian treats a woman with mysterious blind spots affecting her vision; at first the symptoms are baffling, until a childhood accident offers a clue that could help explain the condition. Meanwhile, Sara meets a woman whose foot sores have become a source of despair and driven her husband to take drastic measures to soothe the pain. Also, Christian finds his hands full when he visits a bowls club, a young footballer seeks help for a groin strain and a businesswoman shares her extreme food allergies.