After the death of her mother, Lilly is determined to leave her West German boarding school and live with her aunt in East Germany. Traveling to the GDR, she uncovers her family's complicated history.
Lilly finally makes Katrin talk to her, and Lena tells them about Lilly's mother's escape to the West.
More about the family's history is revealed, and Lilly prepares to go back to the West. When she boards the train, Till gives her a 1989 calendar, which means it won't be long before Lilly can live with them.