Help me find Einsatzgruppen documentary

Hello.

Please if you could help me find a documnetary about Einsatzgruppen, Nazi Death-Squads. It was on Nat Geo or Viasat History about a year ago.

In the documentary there were scenes of Jews or russians or war prisoners digging theire own graves and then line up and shot.

I particularly remember a scene where , at one ocazion where people were shot, there was also a small dog that got scared at the moment of shooting, and the narator or a historian pointed at that scene with the dog.

Also in the same documentary or maybe there was another one there were survivors interviews and I remember one of them was telling how he and his father were stripped of their clothes, shot, but only his father got shot and they both dropped in the pit ,later on the small child escaping.