The film tells about the Meshchersky Reserve. Interview of the writer B. Mozhaev, landscapes of forests, rivers, the movement of river vessels, haymaking in the field, views of the village of Konstantinovo, a conversation between the writer B. Mozhaev and collective farmers (synchronously), the movement of a passenger train, breeding ducks on one of the farms, the work of bird watchers in the reserve, ringing of birds, fauna in the reserve, conversation of B. Mozhaev with the gamekeeper of the reserve.