This is a lovely story that those of us (of a certain age) will look back on with a simple fondness. A family go on holiday to the English Lake District where they set up a camp on an island. Soon they are under attack from the "hostiles" - two girls from nearby. After a parley, they agree to join forces with the "Swallow" and the "Amazon" (their boats) signing articles to wage war on the girls' gver mais...