During a drive, son Kees falls out of the car and hits his head on the pavement, causing him amnesia. He turns into a well-mannered young man who does chores for the neighborhood. This to the frustration of Johnny and the rest of the family. They will try everything to get the old Kees back. Meanwhile, Sjakie is really fond of the well-mannered Kees and decides to introduce two important government people to him.

The queen decides to visit Zonnedael on the national holiday of Queens Day. The neighbourhood as wel as the local government try to get rid of the Flodders for this day so the family can't ruin the festivities. However, the Flodders have no plans on leaving since it's Ma's birthday.

Johnny agrees to hide an Italian for a night for 5000 guilders. However, Ma shouldn't find out because Johnny doesn't think she'd agree.

The neighborhood wants the Flodders to go and tries to catch them red handed selling illegal whiskey.

Kees has to join the army. Johnny needs him for a poker game and therefore tries everything he can think of to keep Kees from having to go.

Ma Flodder has grown extremely fond of Vitorio. They are even planning on getting married. Johnny decides it is time for drastic measures.

Johnny tries to earn a lot of money by producing a number of tapes of telephone sex lines with Daughter Kees and Son Kees. It goes wrong when one of the tapes is accidentally swapped with a tape of neighbor Neuteboom which he had made for the funeral of a colleague.

A burglar is very active in the neighborhood and the Flodders are the usual suspects.

The Flodders are about to inherit a fortune from an old aunt, but only if Ma Flodder displays good manners can she achieve nobility and get the cash.

After Whiskey molests the postman again, Sjakie wants the family to insure themselves for these kind of 'accidents'. When Johnny learns more about insurances, he finds a couple of ways to make some extra money.

A baby gets left on the Flodders' doorstep.

A local candidate for a spot in the town council discovers his only chance of winning the election, is by promising to throw the Flodders out of Zonnnedael.

When Johnny forgets about Mothers day, he quickly needs a present he can give to Ma. He decides to give her the gift of a wedding; her oldest son is getting married. An enthusiastic Ma starts planning the wedding right away. However, Johnny doesn't even have a bride yet. And that is of course something he can't let Ma know.