Squadron Leader X.

Errol Kohler (Portman) is a Luftwaffe pilot who speaks fluent English. He is instructed by his superiors to drop a cargo of bombs on the Belgian city of Ghent and then to bail out of his plane wearing a British RAF uniform. The plan goes awry when he falls into the hands of the Belgian Resistance, who believe they are doing him a favour by arranging for him to be smuggled to Britain among a group of downed RAF pilots. On arriving in Britain, Kohler escapes and makes his way to London.