Erik and Lisbeth are getting married and then honeymoon to Austria. When Mom and Dad need to have another baby, the four small decides to go on the honeymoon as well. They hide in the caravan and come unseen to Austria. Since they do not have passports, Erik can not just send them home. The children are only listed in their mother's passport and she is in the hospital giving birth. Lisbeth and Erik have to take care of the kids. It provides a lot of fun entanglements between the wedding couple and the children. Erik and Lisbeth doing now what they can just get a few moments alone. However, there is always something, so it will be an unforgettable honeymoon with my sister's children.

The last day of school before the summer, held farewell to the school year. Hurray a long summer ahead. Rikke joined the feminist and is demonstrating against marriage.

Police constable Møller'og psychiatrist Dr. Mogensen will have something to watch as the Pusle to everyone's surprise finds out that she can do magic. On her birthday she gets sent an ancient, magical figure from her uncle in South America. On the same day Pusle's parents has to travel to London, and the large family is now left to strict aunt Alma.

Six Kids and Their Uncle tells the story of six mischievous children who spend their summer vacation with their eccentric and fun-loving uncle. Together, they embark on exciting and hilarious adventures while discovering the true meaning of family and friendship.