Jonas has to stay at home on the farm and look after his seven younger siblings, because stepfather and stepmother are going to a wedding with eldest daughter Anna. But Jonas is curious about how the party goes and when it might be his turn to get married.
Greger Anner, a student from Uppsala, comes to Ådalen to pursue geological studies. He meets the beautiful and imaginative chalet-girl Sago-Gunnel from Ortorpsgården and they share a blissful summer of love.