Nikolay Bulytsky, an ordinary schoolteacher from our time, having ended up in the 14th century, successfully carried out an industrial revolution there.
And at the same time he drew unwanted attention from powerful neighbors to the Moscow principality.
Who will become the Grand Prince of all Rus’ from now on?
The ambitious Vytautas Keystutovich, the cunning Jogaila Olgerdovich,
or the strict Ivan Dmitrievich Donskoy?
The future of the Moscow principality is at stake.
Will Rus’, with the help of modern technologies, be able to resist medieval aggressors?..