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.

Johnny loses his precious Chevrolet in a poker game. He goes all out to win it back.

When Johnny and son Kees get electrocuted by accident, they find themselves trapped in each other's body.

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.

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

Kees falls in love with a police officer causing outrage from the rest of the family and Johhnies buddies.

When a F16 fighter pilot loses his bomb, it falls right into the Flodder's swimming pool. When son Kees finds it, he assumes it's part of the fireworks that Kareltje should deliver because of New Years Eve. Kees starts carrying it around the house not knowing he is causing severe danger to his family. Meanwhile, Sjakie comes along to show his new car to the Flodders.

Ma wants to redecorate by putting up new wallpaper in the living room. Toet and Henkie find a few boxes with nice paper in the garage. What they don't know is that Johnny is conserving some valuable papers for the big criminal Robbie in that same garage.

A bank robber on the run, takes hostage of Ma and a couple of neighbours in the mobile shop of Van Putte. Sjakie is being appointed as a negotiator.

A secret agent is being installed at the Flodder's home to spy at one of the neighbours.

Johnny and son Kees find out that it's not a good idea to do business with dangerous criminals on April Fools day.

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.

Daughter Kees has a pen pal in prison. When Johnny and son Kees find out, the pen pal turns out to be 'Cold Arie', a notorious criminal who is being released on short notice. Things get even worse when daughter Kees admits to Johnny that she promised Arie she will marry him as soon as he gets out of prison

Johnnie is forced to help catch an international crime syndicate. For their own safety, the family must leave their house. They return to their home in complete disguise. The neighbors think a new family moved into the Flodder-home and they are very relieved. The Flodders find that their new identities gives them a few advantages too!

The Flodders get nervous because the government will be checking all people who collect unemployment benefits to see if there isn't been done any undeclared work. The only problem is that no one knows who the person is who will be doing this check.

Gus, an acquaintance of Johnny and Kees, is dying and wants to be frozen for thirty years. Johnny offers to keep him in his fridge, for a small fee of course.

Johnny marries a Polish woman so she has the right papers to work in the Netherlands. The woman, however, doesn't seem to understand the marriage is fake, just as Kees, who thinks his brother is really getting hooked.

When a nearby factory loses a cloud of toxic gas, the whole area of Zonnedael is being evacuated. The Flodders however, are the only ones that don't have any clue of what's going on.

Toet and Henkie need money to buy a video game and therefore let Opa take part in a medical experiment.

Kees might have a very dangerous virus and the whole family (including Sjakie, who happened to be visiting the family) have to stay indoors for the next twenty-four hours.

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.