The film is dedicated to the builders of the bridge across the Amur River near the city of Komsomolsk-on-Amur. The film includes the following filming: Landscape of the Far East. One of the sections of the BAM. Workers at the construction of the main bridge. Type of harbor cranes and construction equipment. Various moments of the construction of the bridge. The crane lifts the load. Iron piles and bridge pillars. Surveyors are working. The artist makes sketches of the bridge. The boat sails along the river. The first shipyard of the bridge. Metal structures of a bridge under construction. Raising reinforced concrete slabs. Construction equipment is working. Laying of railway tracks. A team of assemblers is working. Survey work to strengthen the railroad bed. Amur river. Ferry movement along the river. A meeting of builders on the occasion of the opening of the main bridge of the BAM. Launch of the first train across the bridge. The main bridge of the BAM. The movement of a motor boat along the river.