A factory producing agricultural machines is about to be thoroughly modernized. If he wants to keep his job, master craftsman Kroupa (
Jirí Sovák) is going to have to improve his qualifications through further training and completing his school-leaving exams. Kroupa is persuaded to go back to school by his subordinates who fear that the unbearable Hujer (
Václav Lohniský), who has already signed on for schooling, may get promoted and take Kroupa's place. The students at the evening classes of the technical college are all middle-aged people. Even so, there are go-getters, shirkers and slobs among them just like in any other school.
—NFA.cz