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 goes with his wife to spend summer holiday to their villa in country, studies playing of the violin in a correspondence course and constructs an own violin with do-it-yourself-method, but quits his career when he perceives that takes his free time too much and comes back to live the life "in the shadow of a fridge". In the start scene of film a priest (Ere Kokkonen as voice) says in the Uuno's weddings that his complete name is Uuno Eero Turhapuro, whereas it's in the all later Uuno-films Uuno Daavid Goljat Turhapuro.
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 Turhapuro, a useless bum who has married money, creates havoc around his father-in-law's presidential campaign. He dresses up as his long-lost, wealthy brother from America, but things go awry when the real brother appears. At some point Uuno takes up a job at a hardware store, only to warm up a classic TV sketch perfected years earlier by the film's writer-producer Spede Pasanen. Written by Markku Kuoppamäki
Uuno is unemployed and his friends try to arrange a job for him. With his imagination, though, and the help of Härski Hartikainen (Spede Pasanen), he somehow manages to avoid all work, until he becomes what he has always dreamt of being - a film star. Uuno's father-in-law has other plans for his occupation, though: since Uuno knows the Dandelion, he has potential for a professor of botany.
Uuno Turhapuro becomes the President of Finland. Streets are named after him and honorary companies are arranged for him. He also tries to turn Finland into a kingdom.
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.
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 moves in flight cargo to Helsinki for the search of a rich, beautiful wife. He buys elegant clothes for eight marks from an estate auction and in two weeks becomes the most pursued bachelor in town, charming all the women. He also starts as a waiter in Vaaleanpunainen sika (Pink Pig), which starts the first quarrels between him and his father-in-law.