One city is completely out of wind, causing great difficulties for everyone. Professor Balthazar discovers that all the wind has gone to a neighbouring city, where it causes real disasters. Balthazar constructs ingenious devices that save both cities.

Leo the painter is not very successful since he can only paint one thing: paintings with yellow flowers on a pink background. Nobody really cares about this particular motif until Leo appears on television with his friends the dancing butterflies.

On the square of Professor Balthazar's town, Victor is selling boiled eggs, eggs à la Victor, with the help of his amazing Eggomat. When the machine breaks down the customers are desperate for a solution. Professor Balthazar discovers that a stranded alien has taken the spring from the Eggomat and all the clocks from clock towers in an attempt to repair his spaceship.

Three of the little town's inhabitants are music lovers. The tailor likes to play on his scissors, the street sweeper loves playing on the garbage bin and the glass blower plays music with the bottles he makes. However, the rest of the city are not equally fond of their music and Professor Balthazar invents a flying washing machine and fly them to another planet.

Fabijan the tram conductor saves the life of a small sparrow, which in return teaches him how to fly. Fabijan’s tram becomes the first flying tram in the world. This results in a series of adventures, but ultimately leads to a happy ending.