Bolshevik Tsolak Darbinyan is infiltrated into Dashnak Army as a musician of Army music band. Despite the initial personal conflict with band leader Arsen, he is able to win the friendship of young band musicians including Arsen and to persuade them to back him on the eve of the Bolshevik invasion to Armenia.
One day, Sona, the widow and mother of three children, turns her attention to the inveterate bachelor Ruben. Since then, an engineer, a jack of all trades and an incorrigible dreamer only thinks about her
An industrial plant pollutes Lake Sevan with discharges. The public demands to close harmful production. The responsible worker, who is in charge of the plant, understands the requirements of environmentalists, but does not dare to conflict with the management.
