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 is abandoned by her friends and meets Kasper. He wants to show her something cool and takes her with him to his cabin. A new friendship is formed.
The archaeologists get a tip. Old Viking things have been found in Dag's field. Now the question is whether the archaeologists understand that it is the children who have put them there.