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

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 is tired of always relying on Johnnie for transportation and decides to take driving lessons.

Much ado about a safe in the floor of the house after Ma has decided everybody should give Ma their money because the family has to become more thrifty.

Ma suffers from a terrible tooth ache. When Johnny meets a so called dentist at the coffee house, he thinks the problem can be solved on short notice. Meanwhile, daughter Kees thinks she has met the love of her life.

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.

Hennie has an art expert interested in an icon he stole. However, the art expert wants a certificate that proves the icon is real. Since Hennie doesn't know anything about art he didn't steal the certificate and asks Johnny and Kees to steal it.

Strange things happen when Ma Flodder is home alone.

The family is planning a trip to Aunt Agaath. Johnny however, forgot that he also planned a drag race at the same day so he is doing everything to get out of the family visit.

Johnny trusts son Kees with his money so Kees can give it to Hennie to bet on the horse races. However, before Kees meets Hennie he already has lost the money. Kees is trying everything to make some money before Johnny gets back.

Friday the 13th, brings a lot of bad luck to the Flodders, who are trying to go to a Harco Sorbato concert.

After a séance son Kees acts very strange. Very strange indeed.