It is the summer of 1942. The mighty United States Army Air Force enters into the battle of the Second World War in Europe. The coming of the Americans to war-torn Britain is welcomed by most of the inhabitants, but for the children of the village of Widdlington it is a catastrophe. A new airbase for B17 Flying Fortress bombers deprives them of crucially important territory. The children accordingly gang together in a series of raids and skirmishes against the Americans in an attempt to regain their rights.