A French boy, the son of an astrophysicist, came to Armenia from Paris. His father came to work at the observatory. Friends from the pioneer camp undertake to show the guest the beauty of Yerevan. The children escape from the camp and come to the city. A physical education teacher and a pioneer counselor go in search of them. Funny situations await children and adults…

Vahan, a well-known elderly doctor, comes to his native village to once again try to convince his mother, who lives alone in an old house, to move to the city.