In one segment of the PBS DVD, Auschwitz, is the story of Albert Battel, a German senior officer who took great risks to protect Jews (in the Polish city of Przemysl) from deportation and the death camps:
At the German Army headquarters in the Polish city of Przemysl, a senior officer, Lieutenant Albert Battel, who had been trained as a lawyer, heard the Jews were to be deported the next day. He used great cunning and daring to secure the release of Jews who worked for the army.
More on the Auschwitz DVD here.
More on Lieutenant Battel here.