Yermak. Tobol River

End of the sixteenth century. A complex and difficult time. The western borders of Rus are tormented by the Poles and Livonians. The southern frontiers are disturbed by the raids of the Crimean Khan. And only in the east, on the shores of the Kama, beyond the Stone, a new great kingdom opens up for Rus. But will the Cossack ataman Yermak be able to conquer it without perishing in the endless expanses of Siberia?