When the Russian Army marches into East Prussia at the end of the war, the Wolf family must flee. Liesl, Otto and their baby sister, Mia, find themselves lost and alone, in a blizzard, in the middle of a war zone. Liesl has promised Mama that she will keep her brother and sister safe.
 
But sometimes, to survive, you have to do bad things. Dangerous things. Wild things.
 
Sometimes to survive, you must become a wolf.