Lillian Müller finally arrives in Tenerife, but Svein has overslept. The Haider family gets into trouble with their rental car. Uncle Erling and Stein Are, who only have wooden shoes with them, are going on an arduous cave trip. Cathrin and Odin are on the beach, where Cathrin feels at one with the sea.

Fred Åge is getting ready to leave for Tenerife, and Radio Kvinesdal has already settled in Gran Canaria. The boys from the North test their strength in a water park, while Håkon tests his patience on a mountain trip with Bibbi and Aurora.