December 20 - Episode 1 - Part 1

Part 1 of Episode 1
“December 20” is a Soviet historical film directed by Grigory Nikulin and written by Yulian Semyonov. It is about the creation of the Cheka, the Soviet secret police, in 1917 in the aftermath of the October Revolution.
Helpful History
October Revolution: en.wikipedia.org/wiki/October...
Kerensky-Krasnov Uprising: en.wikipedia.org/wiki/Kerensk...
Boris Savinkov: en.wikipedia.org/wiki/Boris_S...
Kornilov Affair: en.wikipedia.org/wiki/Kornilo...
Alexey Kaledin: en.wikipedia.org/wiki/Alexey_...
STAVKA: en.wikipedia.org/wiki/Stavka?...
Nikolay Dukhonin: en.wikipedia.org/wiki/Stavka?...
Committee for the Salvation of the Homeland and Revolution: en.wikipedia.org/wiki/Committ...