Between 1938 and 1945, over 200,000 men, women, and children are imprisoned in Buchenwald, the Nazi concentration and slave labour camp in Weimar, Germany. For two months in 1944, that number includes 168 Allied airmen, mainly from the United States, Britain, and Canada. They are shot down over occupied France, betrayed to the Gestapo by the same collaborator, transported to Buchenwald in cattle cars, and held in inhuman conditions until the Luftwaffe transfers their fellow fliers to a prisoner of war camp.