The Kiljunen Brothers at School

1765. Regina Tuomaantytär is engaged to Juha. However, she is also courted by Martti Heikkilä, soldier Matti Modig and Kalle Brockman. Regina's two sisters and Sikala's maid Maria have fallen in love with Martti again.

The Kiljunen family wins a holiday trip to Helsinki and the city will never be the same again.

Cavalryman Kalle Kollola makes a fool of himself in order to get by with less service during his time in the army. Aunt Loviisa, who has come to see him, urges her witty but lazy cousin to straighten up. Aunt Loviisa also helps Miss Hilja Aro settle her differences with the horse master Kalpa.

The birthday of twin boys, Mökö and Luru, takes the family Kiljunen to Helsinki, where their dog gets accidentally switched with the president's dog. Mökö and Luru rush to save their dog, while mother and father Kiljunen take over the city from land, sea and air.

In 17th century Finland young Arvid is forced to marry Brita but their ways soon part when their respective fathers move to different places. Years roll by and Arvid grows up into a handsome and respected Thirty Years' War veteran known for his excellent fencing skills. However, he has fallen madly in love with a local maiden who does not reciprocate his advances, not to mention that his forced marriage to Brita is still valid.

That Kiljunen familys sets out find their two missing family members, who have been sent to Tampere by the Matalamäki boarding school for retraining due to poor school performance.