Olga and Igor Astrov are a strong couple, parents of three children and business partners. They created the successful Olga airline from scratch, named by Astrov in honor of his beloved wife. But one day Olga finds out that her husband has another family. Not wanting to share either children or company with Igor, she decides to devote her ruined life to punishing her husband. Olga declares war on Igor. Business becomes the battlefield, and children become bargaining chips in the parents’ war.