Sture Letterström and Kurre Svensson take on the task of rescuing a secret document during World War II from a group of Swedish Nazis. Since both of them are known by the local Nazis, Sture takes on the role of Miss Märta Letterström, and Kurre also has to make use of his feminine side as well as a dress.
Åsa-Nisse advertise for Summer guests and from Stockholm arrives Mrs. Niklasson and her atlethic daughter Elsa who is currently training for the olympic games.
The Squadron leader throws big a party where one of his colleagues is going to demonstrate a new type of explosive substance.
