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.

The urn supposedly containing the remains of Alice's grandfather falls out of the window and breaks. To Alice's great surprise, the urn is empty and the girl learns that the grandfather didn't die but disappeared under mysterious circumstances on the 2nd September 1946 in the town of Telc. Her grandmother claims that a mysterious young man with dark glasses was implicated in her husband disappearance. Alice is determined to solve the mystery. Grandmother's story leads Alice to a shoemaker who hands her Professor Jeník's - her grandfather's - invention, called the Force-fields Accelerator. Alice tells her boyfriend Petr about the device and the young man creates a time machine following the professor's instructions. The young couple then travel back to 1946 and there they indeed meet Alice's grandfather, and his daughter Blanka, who will later be Alice's mother.

Thirteen-year-old Vendula dozes off at school and dreams about her parents riding in a carriage dressed in their wedding clothes. The young teacher is angry with the girl who has already failed a year, and has no idea that she is looking after three younger half-brothers. They all have a different father and their mother comes home noisy and drunk every day, often accompanied by a man...