Summer 1940 and the Battle of Britain is about to begin. After his time in France and the nightmare of Dunkirk Sergeant George Yeoman of No. 505 Squadron R.A.F. no longer has any illusions about the war he is fighting. Those months' service have left Yeoman a battle-wearied flying ace but if it is rest he's after then he is sorely mistaken. His commission finally through Yeoman finds himself presented with new responsibilities and challenges when he is temporarily attached to a Polish fighter squadron. Meanwhile Lieutenant Joachim Richter Yeoman's great adversary and opposite number in the Luftwaffe is readying his men for the storm to come. Hurled across the Channel the Luftwaffe begins to pound away at the defences and with no reserves left the Few are all that stands between Britain and defeat.