Wedding bells are ringing for the Doc and Louisa. But will the marriage finally go ahead? The Doc is irritated by PC Penhale, who wrongly presumes he is best man, plus Louisa is late. The Reverend has his doubts as to whether she will turn up, putting Martin on edge. Meanwhile, Ruth is having a rough time looking after James. He refused to eat his dinner and he won't settle, crying continuously. To make matters worse, they have a power cut.