The musical version of the successful play of Oldřich Daněk was transferred to the screen by director Jiří Sequens in 1986. It takes place in the 14th century in Bohemia during the reign of King Wenceslas IV. Heroes of the story are three mercenaries who always fight on the wrong side and are always beaten, but they are moral winners of all conflicts and skirmishes.
After five years of hard work in America Juraj Hordubal (Anatoliy Kuznetsov) returns back home. He is looking forward to his wife Polana (Libuse Geprtová) and his little daughter Hafie. The family and the village welcome him with hesitation. Everybody believed that Juraj died in America because Polana stopped receiving money from him already two years ago. Polana's farm was prospering first of all thanks to the young stable boy Stepán (Sándor Oszter). Men in the pub first indicate and then say to Juraj directly that Polana has been unfaithful to him with Stepán.
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.
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.
Julie, the youngest daughter of a bankrupt merchant, sacrifices her life in order to save her father. She goes to an enchanted castle in the woods and meets Netvor, a bird-like monster. As Netvor begins to fall in love with Julie, he must suppress his beastly urge to kill her.