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.

Sjakie is worried about his job assessment at town hall. Ma tries to calm him down with her self-brewed whiskey. When Sjakie tries to drive home after, he accidentilly listens to a assertiveness training on the car radio. This results in a total new Sjakie who immediately gets a big promotion.

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.

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.