Failing to defeat Rus', Batu's hordes invaded Europe. Wallachia, Moravia, Hungary, and Poland fell under the hooves of their horses. The Mongols invaded the Holy Roman Empire. While the Great Khan was busy satisfying his ambitions, the time had come to undermine his influence in the lands he had already conquered. This task can only be done by a stranger from the twentieth century, Dmitry Gordeev and his friends.