After a nasty incident with a goat, the Troll family are forced to leave their native Norway and make a new home somewhere else. Unfortunately they choose the quiet suburb of Biddlesden. Faced with the prospect of 'Baked Beans for dinner, and the awful spectre of 'The Shower, things are going to get ugly (and possibly hairy and smelly, too). But worst of all, they have moved next door to the Priddle family. Big mistake.