Lilleper is starting school, and on the last day of summer vacation, his father invites the whole family to a party at Tivoli. But then everything goes wrong. Per doesn't like school. Søs falls out with Peter, Mie is accused of theft, and his father is fired from his job and talks about selling the house. Everyone is looking forward to a sad Christmas, but maybe Lilleper will still go to the "Christmas Ball in Nisseland."
After a gruesome meeting with the tax authorities Alex Alexander takes a drive in the countryside to calm down. While driving, he accidentally runs into an elephant from a circus. When he is stopped by the police and tells them about the elephant they think he is crazy. He is committed to an asylum by the very authorities his taxes are funding. The doctor tries to convince him that the elephants were not really there, but he gets more help from manic fellow patient Knudsen who makes him realize that everybody in the world is crazy in some way.
Ib Schønberg is again the kindly father - and now he is crowned "the ideal driver". This means that he can take all his four children to winter holiday in Norway.
