Dr Martin Ellingham makes his debut on the local radio station, Radio Portwenn. He's not a natural in front of the microphone, and the interview is like pulling teeth for presenter Caroline. She's furious with his monosyllabic answers to her questions.
An old flame of Joan's sails back into her life and whisks her off her feet. But John Slater is seriously ill with a life threatening heart condition, as Doc Martin discovers when he insists on running tests on John.