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.

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

Former Nazi Klaus Abard survives to the 1990s by taking anti-ageing pills. He plans to use a time travel trip to return to Germany in 1944 and present Hitler with a hydrogen bomb, so that he can win the war. Unfortunately the pilot, woman-chasing Karel Bures, dies on the morning of the trip and his earnest twin brother Jan impersonates him, without knowing about the plot.

Placek (Josef Kemr), the head of research in a chemical plant, appreciates the help of his younger colleague Bernát (Alois Svehlík) in the creation of a new synthetic material.

Josef Lachman, once a security officer, serves twelve years for aiding an SS fugitive’s escape. Upon release, he works as a driver on a dam project, hunting buried English pounds Meyer told him about. With miner Rokos’s help, he retrieves the cash and hides it with his daughter Eva, but she spends some at Tuzex, Rokos blackmails him, and they discover the notes are WWII forgeries.

In this crime story, surprisingly, neither the all-powerful criminals nor the spies or saboteurs are pursued, as was once common. The plot is almost mundane: someone unwittingly siphoned off alcohol from a tanker, unaware that it was deadly methyl alcohol, intended for industrial use. Finding out where the poison has been transported and which people it endangers requires painstaking work.

A "fairly ordinary and mundane" working day in various operations of large steel mills...

The story of a poor, disintegrating family of a mother Fišerová and her three children. It is set in the 1890s - a time when the poor working classes did not yet have the right to vote or a permanent eight-hour working day.

A group of saboteurs search for a weapons cache hidden by the Nazi army. Beskydy in the summer of 1950: the StB agent Borek infiltrates a group of saboteurs hidden in the Beskydy mountains. They are preparing terrorist actions against the ongoing collectivisation in the village. The group is led by Ervín Kopal and Metud Hanák. Borek is to make contact with them, secure the saboteurs and discover a weapons depot. After many dramatic events, the task is accomplished, but at the highest cost...

A bunch of old friends reunite for the start of the rail tunnel construction. The miner Vojta Balvín is a dedicated worker, but at the same time a stubborn man. It is only a work accident that clarifies relations between him and the other workers...