Uuno disguises as an old man and infiltrates a nursing home for rich old people, where his father-in-law also lives. The ever-hungry Uuno is seduced by the table groaning with food, but as it happens, he never manages to be there at dinnertime. Meanwhile Sörsselssön enters Uuno for a TV competition named This Is My Life, where contestants tell about their life as viewers vote them either to continue or out of the show. The nursing home elderly watch on TV as Uuno tells the show's host his life story.
Uuno Turhapuro is searching for a job and takes a correspondence course in tour guiding. Eventually he gets a job in a small travel agency and takes a group of Finnish tourists to Marbella, Spain. Unfortunately Uuno's father-in-law Tuura is in the group, too, with his wife and daughter, Uuno's wife Elisabet. Tuura tries to get a signature to an important paper from a minister who's having a holiday in the area. Meanwhile, Uuno just relaxes and enjoys the sun.
Uuno is forced to complete his mandatory military service when it is revealed that he only spent one day in the army in his youth. As is typical of the Turhapuro series his family and friends become closely tied in with these events. His friends Härski Hartikainen and Sörsselssön return to the army for a refresher course and by chance Uuno's father-in-law, Councillor Tuura is made the Finnish Defence Minister. In one of the most memorable scenes, Uuno's wife, Elisabeth, dresses as Uuno and substitutes him for a day as Uuno has an apparently urgent meeting (at a restaurant) and while becoming lost in the woods with a malfunctioning radio, Tuura accidentally declares war on Sweden.
Uuno's nose is proved to be so good, that he can smell behind the display window what goods are on the other side. With this fabulous smell talent Uuno is chosen to Police's police-dog school as a student among the other dogs. Meanwhile Director Tuura, Uuno's father-in-law has been chosen to a very high office and thinks that Uuno is just gaining bad reputation for him, so he decides to broake Uuno's and Elisabet's marriage.