Herewith the BBC summary:
In 1943, a group of Belgian Jews escaped from a train bound for the Nazi death camp at Auschwitz.
In the only incident of its kind, they were helped by members of the Belgian resistance.
Witness speaks to Simon Gronowski, who at the age of 11, jumped from the train to safety.
Listen to it all (10 minutes). I caught this by accident yesterday in the car driving to a meeting, and it left me shaking in silence. Do take the time to give your attention to it–KSH.