September 1939, World War II is about to begin: The young, brash and inexperienced pilots of Hornet Squadron, a fighter unit of the British Royal Air Force's Fighter Command and equipped with Hawker Hurricane Mk. 1s, are not inclined to take the impending war very seriously. Squadron Leader Ramsey, who has been drilling his men hard, is eager to get into action. Returning from a practise flight, he inadvertently taxis his Hurricane into a slit-trench, upending the aircraft and, too impatient to wait for a ladder, falls from the cockpit and fatally breaks his neck.