A Moscow principality embassy is sailing to Poland on a Novgorod ship, while slowly recovering from the raid of Khan Tokhtamysh. At the same time, in the West, the militant Teutonic Order under the leadership of a new Master is pushing into the lands of freedom-loving Lithuanians and Samogitians. Whole peoples join battle for the lands of their ancestors, trying to preserve their native faith.
What awaits the young sailor Andryusha, sailing from Novgorod to his fiancée, the Lithuanian girl Lyudmila, in a foreign land?