On the day Andrzej graduates from police academy and receives his officer's stripes, his father, a senior police officer, is murdered. Andrzej, assigned to the investigative brigade, tries to find the murderer, who turns out to be a member of an international gang of counterfeiters. The mysterious ringleader resorts to the help of Janina, an innocent girl who has nothing to do with the criminals. ...

Commander Korski, head of the Gdynia port, invites his police-commander daughter Marysia from Warsaw in hopes she will become engaged to Lieutenant Kotowicz, who is returning from America.

The story of two friends Adam and Zygmunt, serving in the floatplanes escadrille of the Polish Navy.

A wanted Pole arrives in Tsarist Russia and assumes the identity of a Police Chief.

In the beginning of the 20th century, Polish students are fully aware that the education system is not one in which the truth is taught, but rather one their government wants them to learn. A student contradicts his professor's stance that Suworow was one of Poland's greatest leaders. The argument between the two eventually leads to a wide strike.

Wincenty Poziomka tries to earn his living and falls in love.