The holiday of Pharmacist Himanen and Lieutenant Paavo Kehkonen turns into a nightmare when they pick up Station Chief Viirimäki, who is in a hurry to get to work. Their boat engine dies and runs into the rocks, leaving them stranded on an island with no clothes. Posing as a woman, Himanen gets to know the police chief's daughter Alli, but as a result of coincidences and misunderstandings, the two men end up in jail, each suspected in turn of being a fugitive Vikström.

Vinski inherits a general store in Ihantala from his aunt, which he starts running with his friend Lapatossu. The friends face fierce competition from the greedy merchant Juhos. The resourceful Lapatossu solves the problems of the villagers and evacuees in between business transactions.