Amsterdam, 1943. Young Hanneke helps the city residents with supplies. She isn’t just a seller—she’s a real treasure hunter: she enjoys being useful in such a terrible time. One day, her work brings her to the home of Mr. Jansen: a woman in despair asks to be helped find a missing teenager. From that moment on, Hanneke’s life changes. The deeper she gets into the investigation, the clearer she becomes aware of all the horrors of the Nazi war machine. And even harder trials still await her ahead.