Caricature of A. Hitler. Moscow city. Military aircraft in the sky. Searchlight beams. Sentry at the observation post. An announcer in military uniform announces an air raid alert. Residents of the city listen to loudspeakers on the street. Factories and factories are ringing. People leave their jobs, passengers leave the tram. Empty trams and cars on an empty street. Aircraft and airship in the air. Chemical alarm signals: hitting the rail, turning the handle of the manual siren. People wear gas masks. People in gas masks at the office tables, at the machine tools of an industrial enterprise. Explosion of the building. Fire. People are extinguishing the fire. Clearing the alarm. Residents of the city with gas-mask bags go out into the street. The policeman regulates the traffic. Trams are going. The streets of the town.