Plot synopsis: For the first time in the history of navigation, two Russian ships Vostok and Mirny reached the shores of Antarctica. The conquests of the Bellingshausen and Lazarev expedition were then questioned by the maritime powers. And now, in the 40s of the twentieth century, a young Leningrad scientist Golovin, who spent many years searching for expedition maps, discovers documents from the naval archive in the German-occupied territory...