XIII century. A small town stood in the path of Batu Khan and his troops, whose defenders refused to give up. For seven weeks the city did not allow the Khan's troops to advance further. For seven weeks, day and night battles went on. The terrible khan nevertheless managed to enter the city, destroying all the defenders and inhabitants of the fortress, but, while losing thousands of soldiers and many siege weapons. In a rage, Batu ordered to call the fortified city “Evil City”.