Rus of the fourteenth century. The princes fight to expand their possessions, proving by force of arms their right to the table of the Grand Duke. From the Oka to the Volga the flames of internecine wars burn, and only Novgorod arrogantly looks at the stupid ambitions of the rulers. It is into this situation that our contemporary finds himself. He has only one completely pragmatic desire - to survive and return back, but circumstances dictate their conditions, forcing the hero to take up arms, and fate gives him Bear Castle.