The families of Vavruš Cagala and Cyril Hanulík live in a secluded area in the Beskydy Mountains. Vavruš and Cyril are hardworking woodcutters and foremen. Cagala's daughter Terezka likes Tomáš Hanulík, but she also likes Pavel Zgabaj, the son of the owner of the farms in the valley. Cyril Hanulík is jealous of his Heva and wrongly suspects her of infidelity. Francek, whom Heva loved before their marriage, takes revenge on the Hanulíks: he sets fire to their apiary, from which he seizes Cagala's hayloft. Since then, misfortune has befallen the Cagala family. They lose their horses and wood, and old Zgabaj demands the money he lent them. He is only willing to back down from his demands if Terezka marries his son. Cagala does not want to allow her daughter to sacrifice herself, so the girl secretly goes to the farm to work there as a helper on the farm...