But the son of Philip (Vladimir Tikhonov) has grown, the husband Avdyei (Leonid Markov) leaves her for young Nadya (Lyudmila Khityaeva) and Fedosia's world starts to collapse.

Fedosya Ugryumova, a tractor brigade leader, faces a difficult situation when her husband, Avdey Petrovich, leaves her to marry another woman.

Their 18-year-old son, Philip, deeply hurt by his father's actions, even attempts to crush the newlyweds’ car with a tractor on the day of their wedding.

Shortly after the marriage, Avdey starts feeling nostalgic for Fedosya, whose straightforward and honest nature contrasts with his new wife Nadya, who is primarily interested in acquiring a car.

When Fedosya and her friends visit the agricultural equipment depot to secure new tractors, they meet Pavel Fedchenkov, who was once Maria's boyfriend in her youth.