Polly is really looking forward to a trip to the seaside with her best friends and their boyfriends. It'll be brilliant, all eight of them together! But then Polly's plans start to fall apart as, one by one, her friends' relationships hit trouble. Soon she finds herself stuck in the middle, like some kind of agony aunt. And when Polly finally gets her day by the sea, will it turn out to be as much fun as she hopes -- or will it be a total disaster?