It's time for Jonsson to return to his old regiment to rehearse what he learned during conscription a few years ago. He meets his old friends, platoon leader Larsson and the music loving captain 'Beethoven'. Jonsson and his comrades doesn't take it very serious - but they have a jolly good time. A female journalist follows the exercise to write an article, and gets interested in him.

To secure an order for 1 000 cabin cruisers from an Arab prince, two companies have to compete by racing each other by canal from Stockholm to Gothenburg. A small family owned company on the brink of bankruptcy is pitted against a much larger competitor and both resort to dirty tricks in order to reach the goal line first.

Svante is a young boy who lives with his family in a Stockholm apartment. One day he meets Karlsson, a chubby little man in the prime of his life, who can fly using a propeller on his back and who lives in his little house on the roof.