Doc Martin

Al discovers that Bert is not his natural father; Martin diagnoses food poisoning for a rural family with a mysterious unseen mother.

An old man, inexplicably emanating a horrible stench, consults Doctor Ellingham; and the local radio host, Caroline, seems to have a serious drinking problem.

Martin examines Helen Pratt, but she collapses and dies. Her husband, Phil, is angry with the doctor and blames him for his wife's death.

Martin's cold and difficult parents come to stay with him. He hasn't seen them for seven years, and is puzzled as to why they should turn up out of the blue.