When the Berlin Wall went up, Gerta, her mother, and her brother Fritz are trapped on the eastern side where they were living, while her father, and her other brother Dominic are in the West--four years later, now twelve, Gerta sees her father on a viewing platform on the western side and realizes he wants her to risk her life trying to tunnel to freedom.

Charlotte Kraus would follow Angelika Haas anywhere. Which is how she finds herself in an underground club one Friday night the summer before World War II, dancing to contraband American jazz and swing music, suddenly feeling that anything might be possible. Unable to resist the allure of sharing this secret with Geli, Charlie returns to the club again and again, despite the dangers of breaking the Nazi Party's rules. Soon, terrified by the tightening...