After the Government decides to build a Festival of Britain exhibition site, everything goes to plan, all except the fact that the main road and the pedestrian subway into the site, are blocked by a little corner shop, which is owned and run by a Mr. Lord and his family. The Lords refuse to be bought off, and decline the compensation offered by the authorities. The police and the bailiffs try to evict them, only to come under fire from the family, who have barricaded themselves inside the shop.