It is Christmas Eve. In the English Channel port of Dover people go about their business, assuming that they have nothing to worry about from the conflict raging across Europe. But the town’s calm is about to be shattered. Just five years ago Louis Blériot was the first man to fly an aeroplane across the Channel. Now German pilot Alfred von Prondzynski repeats the feat, flying to Dover with less peaceful intent. Once he sees Dover Castle and the port below him, he throws a bomb down at the town below. It lands in a garden beside a church, blasting a crater several feet deep. A gardener falls out of a nearby tree he had been pruning but is not seriously hurt. He is the only casualty of the attack.