Streets of Leningrad. Transport traffic on the city street. Building number 5 on Zhelyabov street. Residents of the house in the classroom on air defense and chemical defense in specialized classes. Duty officers check the fire equipment in the house. Signpost "To Shelter". The woman covers the window with a blanket. Training air raid. The townspeople flee to the shelter. Housewives pour water into the bathtub, into buckets, into pots. Sandrangers are disassembling medical bags. Women with children in the shelter. The attendants pass through the empty streets. The chemical protection squad treats the "contaminated" area in the courtyard of the house. Men put out the fire in the house. End of the exercise. Participants in the exercises take off their gas masks, leave the shelter.