Sammy Adams is always on the look-out for a new business opportunity. When he hears from his son David about the new-fangled supermarkets that are becoming all the rage in America, he immediately starts looking for a suitable site in South London. Meanwhile, legacies of the last war continue to haunt the Adams family. The mystery of Katje Galicia, the Polish woman who knows something of Sir Edwin Finch's past, becomes a major police enquiry while a beautiful German girl appears, bringing wartime memories back to Tim Adams and his wife Felicity. Tim and Felicity have much to rejoice over, while the younger members of the Adams family are starting to spread their wings.