Sara and Kurt Muller and their three children are returning to her mother's home in Washington D.C. after 18 years in Europe. A Romanian Count living there discovers Kurt's attache case full of money. He also finds out from friends at the German Embassy that Kurt is working with an anti-Nazi underground group in Germany. He tries to blackmail Kurt. Kurt shoots him and must flee. When Sara hears no more of Kurt, she knows that her oldest son Joshua...