The Soviet Union was one of the most powerful countries in the world. The Union of Soviet Socialist Republics, existed from 30 December 1922 to 26 December 1991. Nominally a union of multiple national Soviet republics, its government and economy were highly centralized.
Russia played a key role in the Soviet Union, and was widely considered the primary decision making country. One of the reasons why the union collapsed is because some countries wanted more independence in making their decisions.
Mikhail Gorbachev was the last leader of the Soviet Union, and he came to power in 1985. He had a vision of reform, a way to revive the increasingly-stagnant Soviet economy. But his reforms actually helped hasten the fall of the Soviet Union, more than they did to save it.
This documentary focuses mainly at the Kremlin, the headquarters of the Soviet Union, and how it caused the fall of the union.