1syuzh. - Chelyuskinites and hero pilots: Kamanin, Vodopyanov, Slepnev, Lyapidevsky visiting the Red Navy men of the Baltic: visiting the battleship "Marat". 2syuzh. - Pre-recruits (Central Black Earth Region) undergo military training in summer camps: they shoot from rifles, get acquainted with the device of the tank. 3syuzh. - A tram with passengers passing along the street (Leningrad). Seaplane flights. The seaplane makes a landing, the crew disembarks from the plane. 4syuzh. - The first woman in the USSR to pass the GTO norm of the 2nd stage, a student of the Air Force Academy Lina Zaitseva: in the cockpit, she passes the TRP norm in rowing, rides a bicycle, passes the norm in running, jumps with a parachute.