Military airfield. Pilot Martynov is preparing for a combat mission. Preparing a bomber aircraft for departure. The plane flies, drops bombs, lands. Moscow. Fighters of the General Education in the classroom. Pamir. Collective farm them. Voroshilov. Collective farmers-Tajiks knit, pack, hand over warm clothes for the soldiers of the Red Army. Aul. Kazakhstan. The collective farm "Dawn of the East". Sowing winter crops. Moscow. Park of Culture and Rest "Sokolniki". Start and finish of the participants of the autumn cross-country. Among the participants is one of the Znamensky brothers. Caucasus. One of the sanatoriums. Doctors and nurses escort the recovered wounded soldiers to the front.