The armies of the Third Reich invaded the USSR on 22nd June 1941. Mobile commandos, the Einsatzgruppen, were following their advance to Stalingrad with the mission of eliminating all Jews on the conquered territories. Between June 1941 and the end of 1943, they shot to death close to two million Jews — men, women and children — from the Baltic countries to the Black Sea. Director Michael Prazan explores this unknown phase of the Shoah.