Based on the work of Yurii Mushketyk "Yasa". The action of the picture takes place in the 17th century, when Ukraine, led by the legendary Ivan Sirko, was defending itself from Tatar raids. A story of Ivan Sirko, the legendary Ukrainian originally from the Merefa county near Kharkiv, who was elected the leader of Cossacks eight times, bravely fought and won 53 major battles.

The story of two Cossacks from Zaporizhzhya Sich, who had been taken as prisoners by the Turks, but were able to release themselves and get home. But it is going to be a long way and it is very unsafe, so the heroes will find many dangers and obstacles.

Anna and Michailo grow up together, attracted to each other since their earliest days. When Anna's father dies, her brothers force her into marriage with the mean farmer Mikola. After years of absence, Michailo comes home, to get her back.

Alexey Titarenko is very talented pilot and brave leader of "Singing group". He also must look after some new cadets and fight together with them against German Luftwaffe planes. Close to Alexey always are his friends, they are all from different parts of the country, but they all became real brothers.