The First "is a Russian historical film based on the Yakut play" Constellation of Mary ". The plot tells about the Pronchishchevs, Vasily and Tatiana, who went on a research expedition to the Arctic under the command of the legendary navigator Vitus Bering. The Great Northern Expedition lasted more than 10 years, from 1732 to 1743. A young daredevil sailor Semyon Chelyuskin sailed on a huge ship along the Lena and Yenisei rivers. During their difficult journey, the team of polar explorers encounters many difficulties, but, unfortunately, not all members of the expedition were able to overcome them.