10 July 1940. The Battle of Britain begins as the German Luftwaffe launches attacks against the United Kingdom, aiming to destroy the Royal Air Force and pave the way for invasion. Yet Britain refuses to yield.

But not everyone shares that resolve.

This is the story of Unity Mitford—a British aristocrat and Nazi supporter who became closely connected to Adolf Hitler’s circle. Drawn to fascism, she moved to Munich and, through persistence, gained access to Hitler, attending rallies and official events.

Openly expressing extremist views, she shocked Britain and aligned herself with the Nazi regime. As war between Britain and Germany became inevitable, Unity remained loyal to Hitler—even as her own country prepared to fight.

On the very day Britain declared war, her story took a dramatic and tragic turn.