Åsa-Nisse flyger i luften (1956)

Åsa-Nisse has invented a very powerful engine and he sells the patent for 50,000 kronor. However, the grocery store owner Sjökvist has been sneaking around and while Åsa-Nisse and Klabbarparn are on skiing vacation in Åre he manages to talk Eulalia into selling the patent to him for 250 kronor.