Two young orphans in the Tirolian Mountains come under siege by a vicious band of hunters. Frightened of being separated by child services following the death of their mother, a self-sufficient 16-year-old girl and her 10-year-old brother - who hasn't spoken a word since seeing his father killed by the mayor - strive to live off the land in peace. Their innocence is shattered, however, when a group of hunters led by the mayor's son brutalizes and rapes the free-spirited girl. Later, when a well-meaning social services worker arrives too late to protect the terrorized siblings, the girl and her brother prepare to take a stand against their ruthless attackers.

1979, en pleine guerre froide, deux familles ordinaires d’Allemagne de l’Est rêvent de passer à l’Ouest. Leur plan : construire une montgolfière et survoler la frontière. Une histoire incroyable. Une histoire vraie.