Uuno Turhapuro finds his doppelganger, Hugo, who happens to be a computer genius. Hugo helps Uuno save his father-in-law's business (and Uuno's inheritance) while Uuno helps Hugo win the heart of the love of his life.

Uuno is working as campaign manager of a president candidate but accidentally Uuno himself becomes the president of Finland.

This prequel to the other Uuno Turhapuro movies tells the story of Uuno's birth and childhood.

The musical characters Rampe and Naukkis became popular from the TV series Hymyhuulet and Pulttibois, where they told jokes to each other in the cleaning closet during breaks. In reality, the characters only appeared in the Pulttibois series.