Sunday in September 1977, a celebration of the Miners Day. The old Hepnar is sitting at the cemetery and is recalling events from ten years ago. That time the representative of the ministry Barvír announced at the miners meeting that mining in the mines would decrease. He reasoned this decision by the fact the deposits of coal are almost used up. The boss of the mine and most of the miners protested. Barvír did not take their critical objections into account. He announced at the communist district meeting the closure of the business as the mine according to new economic principles did not prosper.

The director of films for kids called Bonzurka together with her loyal assistants Drahuska and Honza are looking for the actors for a new movie "The Knee". Children for this movie should not be afraid and shy and they must have talent for acting. Thus the scouting is quite difficult. The most difficult is to find an actress for a main character who lost her hair after a serious illness and now has to spent the whole holiday in the countryside with a bald head resembling a knee. Although the makeup artist does his best an artificial baldness does not solve anything. From the selected little girls only the self-assertive Rosemary has the guts to let her long hair to be cut and shave off her head.

A mail truck is robbed near the small town of Kostelec, during which the perpetrators steal CZK 2.5 million. The local police fail to solve the case. After some time, a young and capable lieutenant Charvát arrives from the Prague CID. While he is getting acquainted with the circumstances of the case and the evidence found, he makes friends with the handsome Květa, the daughter of the hostel manager Weisse. The complicated relationship that develops between the two lovers is in no way comparable to the complexity of the criminal case that brought Charvat to Kostelec. Things get even more complicated when someone murders Malásek, a local brawler and drunkard, with a shotgun. He is actually Květa's husband. And his death, according to Charvat, is connected to the mail robbery...

The reason for making this film is clear: it was to cover up Vojtěch Jasný's famous chronicle "All the Good Natives", an account of the tragic consequences of forced collectivisation. The pro-regime director Antonín Kachlík also focuses on the socialisation of the Moravian village, accompanied by mistakes and coercion, but in his optimistic view he emphasises the hopeful prospects leading to a happy future. Although the united village lands were born in pain, they will serve for the benefit of all the working people... As with Jasný, Radek Brzobohatý embodies the stubborn peasant, who is only slowly acknowledging the benefits of communal farming. However, unlike the poetic exuberance and pithiness of Jasný's chronicle, here we encounter a vicious posturing.

February 1948. The struggle of decisive social forces for the heart of Europe.

Honza and Zuzana are very young husband and wife. They have a little daughter of whom willingly occasionally take care the grandparents and Honza's fifteen-year-old brother Martin. Zuzana continues studying and Honza devotes all weekends as an amateur competitor to the motor-cycles at the speedway. Zuzana is not interested in motor-cycles. Martin holds responsible for his brother's marriage and at the advice of his friend Magda, who is of the same age, invites her sister-in-law to the club of Hucul horses so that she does not feel bored. But by misfortunes and unexplained quarrels both young husband and wife start being jealous of one another.

Martin, a poor student, volunteers to go on a quest to find a cure for the princess Adriana, who is stricken with a strange illness. Unknown to Martin or anyone else, the princess is actually under the spell of the powerful magician Andlobrandini, who is preparing a rejuvenating elixir made from the blood of nine men's hearts.

Late at night Eva Trojanová returns home to an agitated husband; three days later, her body is found with bruises on her neck. Her spouse, missing after a business trip, becomes the prime suspect and flees to northern Bohemia. When investigators learn he is innocent, Captain Hart continues pursuing him, not as a criminal but as a desperate man whose plight may endanger himself or draw him into conflict with the law.

Taxi driver Koukal (Miroslav Machácek) is stopped by the police for a routine traffic check. In the boot of his car the police find the body of a naked man. Koukal is arrested even though he claims he knows nothing about it. The case is assigned to Major Mlynár (Milan Sandhaus). The police identify the corpse as that of an Austrian citizen called Mitrik. Koukal has been regularly driving people interested in gambling to a secret gaming den. The police are put onto the gambling den by another taxi driver, who admits that he drove Mitrik there. Mlynár and officer cadet Pecka (Ivan Vyskocil) feign interest in gambling and visit the gaming den incognito.

A comedy about exchange of 12 apartments , which, its organizer, lawyer Radosta, rightly called Action Ball Lightning. To prepare, organize and execute the exchange of twelve apartments is a work worthy champions. Radosta, who was excellently played by Rudolf Hrušínský, solved all sudden difficulties and complications on the fly and with grace. To be sure that the on the D-day everything goes well he prepares a little rehearsal, which reveals many minor issues caused for example by wedding ordered to inappropriate term or hesitation of some participants. Last but not least a night exercise announced by drunk psychologist Knotků, creates a lot of confusion that nearly sabotaged the whole operation.