SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!
SPOILERS AHEAD
Iron Mask Plot Summary and Synopsis
Early 1700: Cartographer Jonathan Green (Jason Flemyng) from Viy (2014) is back to map the Russian Far East. He’s forced on to China, where he confronts the Dragon Master et al. The iron masked Russian Czar escapes the Tower of London to a Russian ship.
Source: Wikipedia (CC BY-SA 3.0).