In 1241, the Mongol army led by Genghis Khan's sons marched westward, destroying people wherever they went. When they arrived in the Carpathian Mountains, local hunters, the Berkut brothers, secretly entered the camp of the Mongols and released the hostages. The angry Mongol generals decided to take retaliatory measures and destroy the local Carpathian settlements. A traitor among the locals told the Mongols about the secret passage in the mountains, but a small group of mountain hunters led by the Berkut brothers had their own plan to stop the Mongol attack. Adapted from Ivan Frank's novella "Zakhar Berkut"