Health series that takes four GPs out on to the streets of Britain. Dr George, Dr Barbara, Dr Jonty and Dr Ayan take their medical mission to Chester. Amongst the GPs' impromptu patients are a student whose worrying list of symptoms causes concern for Dr Ayan, a sandwich supervisor has to face up to some hard facts when he confesses his smoking habit to Dr Barbara, and one man has a timely meeting with Dr Jonty to discuss a worrying growth.