The Hepplewhites are back in a two part special of the comedy drama series. Fagin looks for a cure for his agoraphobia. Mam and the boys are worried about Fagin. His mental state is deteriorating - if it can deteriorate any further. His agoraphobia is to blame and to cap it all a certain baboon is lurking in the wings. Hoffman, Charlie, Sgt Ball and Claude become involved. Mam pulls out all the stops to bring the nightmare to an end.