Watch Auschwitz: The Nazis and the Final Solution Season 1 Episode 3 Online

The Nazis' marshalling of Jews from across Europe - including the Channel Islands- gained momentum in 1942. Unable to cope with the huge influx, Auschwitz and Treblinka were modified with bigger gas chambers and crematoria. But inspirational stories of courage and compassion could still be found among this appalling catalogue of inhumanity, including that of German officer Albert Battel, who risked his life to save detainees.