An experimental solar power generator is badly damaged in a storm, and the reflector is trapped in a position where it will blaze a beam of focused solar heat across the small town where Lady Penelope Creighton-Ward is taken her holiday. While International Rescue try to move the dish, Parker dons a fancy outfit and claims that he is "Lord Parker", who insists that the guests play bingo to prevent them from noticing their imminent death by giant mirror.