Cadets of the Alexandrovsky Cadet Corps accidentally discover a strange apparatus in the basement and for two days fall from their 1908 in 1972, from their reality - into ours. Now, in order to understand their present, they will have to understand someone else's future, and also track down those who host in their time and the world as at home. Because six years later, when the empire is engulfed by a revolution, they need to make their own for each of them is not easy choice. They are waiting for war games and a Christmas ball, ancient dungeons and streets of Leningrad, chases on the roofs and flying through the night armored train, red banners ... and gold chases with the imperial wenzel ...