Second World War. Heavy fighting takes place in the USSR. The German army advances. A unit of female pilots arrives in a mixed aviation regiment. All of them are still young, and do not yet fully understand what war is. These women struggle in the male world, but they prove day after day that they are no worse than men.
Zhenya is a talented pilot with a difficult destiny, who has lived a lot, learned not to get attached to people, so as not to suffer the pain of loss later. She is afraid of her feelings and tries to contain them. The only thing Jenia wants is to fly well and defeat the enemy. She would like to merge with the air, with the wind, with the plane into one. In a series of aerial battles, the girls fight better and better. But many in the regiment die. Friendship and love are difficult for a woman; in heaven, in combat, they feel more in their place. Soon, Zhenya becomes the best pilot in the regiment, although there are fewer and fewer survivors around her. Jenia prepares to enter her final battle.