East Germany, 1989. Summertime. No one knows the Iron Curtain is about to fall. Twelve-year-old Fritzi lovingly takes care of her best friend Sophie’s little dog Sputnik, while Sophie’s family is on summer vacation in Hungary. When school starts again in fall, however, Sophie doesn‘t come back. Fritzi has to face up to the fact Sophie’s mother has stayed in Hungary with her daughter, like so many other East Germans hoping to reach the West from there. By chance, Fritzi stumbles into a demonstration. She sees the people around her risking arrest, committed to changing their country for the better. Inspired, Fritzi now knows exactly what to do: She has to help Sputnik find Sophie – no matter what!