1223. The Mongols are coming to Rus'. They are led by the battle-tested military leaders of Genghis Khan - Subedei and Jebe. The Russian army, led by the Galician prince Mstislav Udatny, who became famous in many battles, comes out to meet them. The hosts will meet on the Kalka River. What will happen? The Mongols and Russians don’t know this yet. Mongols believe in their strength and cunning. Russians believe in luck and the mercy of God. The Eye of God sees everyone. God will not abandon those whose cause is just, and therefore the banner of the Ardent Eye, embroidered in the image of the Savior with a stern, angry gaze, rose above the Russian army.