Reilly, Ace of Spies

Reilly, Ace of Spies is a 1983 television miniseries dramatizing the life of Sidney Reilly, a Russian Jew who became one of the greatest spies ever to work for the British. Among his exploits, in the early 20th century, were the infiltration of the German General Staff in 1917 and a nearoverthrow of the Bolsheviks in 1918. His reputation with women was as legendary as his genius for espionage.

There are twelve episodes, each approximately 50 minutes in length the first episode is near 80 minutes.

Source: Wikipedia