Martin prepares to face his hearing, but despite having closed the practice, he finds all his patients are trying to make appointments. An American tourist who visited Portwenn previously returns to the town, hoping to research her family tree. However, she also has a medical issue, and comes to the troubled doctor seeking his advice. Louisa goes to see Chris to find out how serious the situation is, while the townsfolk take steps to show Martin how much he is appreciated. Sigourney Weaver reprises her guest role from the previous series. Last in the series.
Elenco: Martin Clunes , Caroline Catz , Joe Absolom , Ian McNeice , Selina Cadell , Katherine Parkinson , Stephanie Cole , Angeline Ball , Roger Lloyd Pack , Jake Wood , Lia Williams , Stewart Wright , Chris O'Dowd , Amanda Abbington , Lucy Punch , Eileen Atkins , John Marquez , Jessica Ransom , Ashton Hinchliff , Louise Jameson .