Heikki Aaltonen enlists in military service, leaving behind his father Hemminki, mother Mimmi, and beloved Helvi on the family farm. At the same time, another Heikki Aaltonen enlists, who is completely different in character from the future small farmer Aaltonen. The constant confusion between the men's names, the overprotective attitude of their parents, and Helvi's admission to a domestic science school near the regiment are all factors that tend to disrupt Heikki's military service.
| Actor | Role |
|---|---|
 Veikko SinisaloHeikki Aaltonen | Heikki Aaltonen |
 Siiri AngerkoskiMimmi Aaltonen | Mimmi Aaltonen |
 Maija KarhiHelvi | Helvi |
 Uljas KandolinHemminki Aaltonen | Hemminki Aaltonen |
 Marja KorhonenSylvi Rantala | Sylvi Rantala |
 Helge HeralaRantala | Rantala |
 Ritva ValkamaAnni | Anni |
| TToivo LahtiRoutanen | Routanen |
| TTauno SöderLuutnantti | Luutnantti |
 Heimo LepistöVääpeli | Vääpeli |
 Veijo PasanenHeikki Aaltonen | Heikki Aaltonen |
 Vili AuvinenAitanen | Aitanen |
 Pentti IrjalaOksanen | Oksanen |
| PPertti PaloKorpraali | Korpraali |
 Uuno MontonenNot listed | Not listed |
| TTuulikki SuomelaIrma | Irma |
| MMauri Heikkiläkirjuri | kirjuri |
| HHarri Tirkkonenkorpraali | korpraali |
 Tommi Rinneautosotamies | autosotamies |
 Matti AulosLeppä (uncredited) | Leppä (uncredited) |
| MMatti Dahlberg(uncredited) | (uncredited) |
| WWalle Siivonen(uncredited) | (uncredited) |
| HHannes Veivo(uncredited) | (uncredited) |
 Paavo Hukkinen(uncredited) | (uncredited) |
| AArvo Kuusla(uncredited) | (uncredited) |
| MMatti Kuusla(uncredited) | (uncredited) |