The Chamberlain family⁠—Charlie and Daphne, and their children Laura, Scott and Nick⁠—had fantastic summer holidays when they were young. But then, inevitably, the children grew up, and their own messy lives got in the way. Since their mum died, it feels to them all as if their family just isn't that close any more. And Charlie fears his kids have all lost their direction. For his eightieth birthday, all Charlie wants is to bring his family together again⁠—and by some miracle, they've all said yes. It's only ten days...how hard can it be?