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.
The plot begins in the Soviet Union showing first efforts to establish the Czechoslovak legion in 1942. The film also shows the assassination of Heydrich and the subsequent annihilation of Lidice. The main topis of the film is battles with German troops for Sokolovo.
An escort composed of three people transports a huge amount of new one-hundred crown banknotes in a special railway car. At the 196th kilometer, a village girl is waiting at the railway crossing and spots two men removing some packages from the track. The scene is immediately followed by the report of a gun and the unwanted witness is shot dead. Soon afterwards, on the 201st kilometer, the train explodes. Only one of the escorts Lenk (Radoslav Brzobohatý) survives the explosion, taken to hospital with serious injuries. Criminologist Major Kalas (Jirí Sovák) and the very young Second Lieutenant Karlícek (Jaromír Hanzlík) patiently gather facts, leads and testimonies.
In the 1600s, an overzealous clergy hauls innocent women in front of tribunals, forces them to confess to imaginary witchery, and engages in brutal torture and persecution of their subjects.
It is 5 May 1945 and the uprising against the hated German occupiers has broken out in Prague. The Czech guards open the gate of the Pankrác prison to allow the prisoners to escape en masse. Many of them are shot dead by the German guards but young Ruda (Jaromír Hanzlík) manages to run away. He is taken care of by one of the Prague fighters, concierge Kytka. Kytka hides him in the flat of the house's owner where only the young maid Karla (Jana Brejchová) is left, ordering her to take care of Ruda.
In early 20th century Czechoslovakia, a gravely ill chemist recalls his discovery of a powerful explosive and how it landed in the hands of anarchists.