A newspaper misprints Pontus Blom's (Carl-Gustaf Lindstedt) yearly income as being much more than it is; this leads to various comical situations of exceeding hilarity.
Privates 91 and 87 once again end up in goofy predicaments when an important map belonging to the regiment goes missing.
In the last film of the original 91 film series two letters - one written in spite and another in love - end up in the wrong hands, while 91 and 87 as usual try to avoid ending up in military arrest.
The singing vagabond Loffe suddenly becomes a man of the law.
The jack of all trades Pekka is having financial trouble and is being hunted by a debt collector.
Sixteen year old Maria arrives in Stockholm. She is going to stay with her aunt. Already at the Central station events occur that change her route.
