Georgy Knyazev is a former airborne officer who left the service to find the killers of his family. Having found and brutally punished the villains, he is forced to flee to the distant past, to Russia shortly before the invasion of Batu. Calling himself a descendant of the ancient Basileus dynasty, Knyazev with friends and associates settles among forests and swamps in order to implement his plan to build the Glorious Fatherland. And the Mongols will terribly regret that they decided to stick their nose into the affairs of the Rus Corporation...