Based on the novel of the same name by Oleksandr Dovzhenko. About the childhood of the famous Ukrainian film director Oleksandr Dovzhenko, who was born on the ancient lands of Chernihiv, along the banks the Desna. The film consists of two parts. The first is the world shown through the impressions of the six-year-old Sashko. The second is the recollections and reasoning of Sashko, now an elderly colonel who liberates his native village during the war.

When Assol was a little girl, she met a wizard who foretold that it will be a fine sunny day when a beautiful ship under scarlet sail would arrive and the noble prince would take her away to the world of her dreams where she will be loved and happy. The neighbours joked about her, children teased her, but Assol chose to believe in miracles and wait for her prince.