Made after S. Voronin’s story “Two Lives”. The film main characters are explorers-railwaymen, who started to build BAM (Baikal-Amur Railway) in the 30s. Engineer Kostomarov was in opposition to section foreman Gradov, who did not want to take into consideration the taiga weather conditions. Because of their conflict the engineer was recalled to Leningrad and tried. But the War came. Kostomarov went to the front and died. The BAM building continued according to his project. Source : www.mosfilm.ru