If you have a free hour to watch this, it is fascinating. The story of the Jews in the 20th century which is essentially the story of all of our lives.
[Unbelievable historical fact in this video: Samuel Demonshtain who learned in the Slabodka, Telz and Lubavitch yeshivas and received semicha, later became a Bolshevik who tried to destroy the Jewish people. This was prophesied by Yeshayahu Hanavi מהרסיך ומחריביך ממך יצאו - Those who destroy you will come from within you].