August 1944, Asta, her younger sister Pieta, and their mother are caught between the invading Soviet Army and the retreating Wehrmacht in East Prussia and are forced to try and survive in the Romincka Forest with winter coming.
When the Russian Army marches into East Prussia at the end of World War II, the Wolf family flees, but Liesl, Otto, and their baby sister Mia are separated from their mother and they are forced to do dangerous things in order to survive.