Helga's childhood as the eldest of five children in Germany's First Family has been a gilded one, accompanying her parents to parties and rallies, moving between the city and their idyllic country estate.
But the war has changed everything. And now, as defeat closes in on the Germans, Helga must move into a bunker in the heart of Berlin with her family and key members of the crumbling Nazi leadership - to be with their beloved Hitler.
There is chocolate cake for tea every day with Uncle Leader, but Helga cannot help noticing that all is not well among the grown-ups.
As each day passes, her underground world becomes increasingly tense and strange.
There are tears and shouting behind slammed doors, and when even the soldiers who have been guarding them take their leave, Helga is faced with a terrible truth.
Perhaps her perfect childhood has not been all that it seemed...