Plot Summary:As the new term starts Gareth, following a nervous breakdown, comes back as caretaker, Luke Martin leaves for a pop music career, which proves to be disastrously short-lived, and Gunn is teaching geography, which he can hardly pronounce. Sarah is organizing a careers day but since Keith stood her up by mistake by going to the wrong restaurant for their date she relegates him to a small part in a humiliating role play. However he gets back into her good books by comforting her after her guest speaker, Fenella Forbes, a children's author with whom she went to college, makes her feel inferior by bragging about her success.