Historical story of the brilliant prince Yapanch, a famous military leader of the Kazan Khanate. August 1552. Kazan was overlaid by the 150,000th Russian army. There were 30 thousand Kazan soldiers in the city. In addition, on the High Mountain, in a fortified position, the cavalry of Prince Yepanchi is located. The plan of the defenders of Kazan was as follows: the garrison and residents with all their might hold the defense from the inside, and the cavalry and all the people who are outside the city will gather in the Arsk section and from there attack the rear of the Russian troops. Prince Yepancha, Chapkyn Otuchev's nephew Murza Shunak and the Arsk prince Yavush were sent to head this operation...