Ole is kicked into the sea, a new boy has arrived in the village and a guide roller is parked with the keys in the lock. There is chaos on the quay.

Kasper has a birthday, but does not want guests, so he throws the invitations in the trash. Fortunately, he has a kind little sister who saves the day.

Kriss has to stay with his father this summer. His new little brother thinks it's great. Unfortunately for Kriss, his little brother is the type who likes to play with fire.

Stine has to get tougher. At least that's what Oldemor means when she sees how her friends treat her. But it's a good idea to listen to Oldemor.

Kasper wants to move to his dad, but it's not so easy when his dad has a new family. Fortunately, Kasper has a secret tree house in the woods.