The story of Czech pilots in RAF service during the Battle of Britain, and the ongoing aerial battle in Northern Europe. It tells the story of the crews of the RAF’s No. 311 Squadron, which was mainly crewed by escaped Czech airmen, and their bombing raids during the Second World War.
Tram driver Marie has far too much to do after her shift is over. But she likes to do it all since she loves her husband Václav sincerely. One day she spots him on the Lesser Town Square in Prague, kissing an attractive blonde good-bye. It seems to Marie that her small comfortable world has collapsed and she walks out of the tram in tears. But her sadness does not last long. She wipes off the tears and begins to act. She withdraws all the money from their savings books and buys off all the latest models from the Fashion Works. The visit to the beauty salon then completes her transformation into a lady.
Inspector Brumpby (Jaroslav Marvan) and the young crime reporter Allan Pinkerton (Vít Olmer) attend wedding of Sir Hannibal Morris (Oldrich Nový) with beautiful Clarence (Kveta Fialová). After the ceremony, Clarence's ex-husband, criminal Manuel Diaz (Waldemar Matuska), who was believed dead, shows up in her room. He wants to get his hands on Clarence and, most importantly, on the money she would inherit in the eventuality of her new husband's death. Diaz makes attempts on Hannibal's life. He knows his way about an underground labyrinth in the château and the traps he sets up for Hannibal seem to work, since Hannibal is apparently found dead after an explosion in the labyrinth, after which his body vanishes. The inspector tries to solve the countless mysteries. In this, he is joined by Allan, always ahead of the man of the law in his estimation and judgment of the situation.
Captain Martin from the police's child department and his colleague Kraus are called to Znojmo to help solve a case regarding stolen toys found in the town's subterranean passages. The members of the local police department are convinced that the thieves are the well-known "customers" from the Znojmo elementary school, pupils Exner and Mandlík. Martin, however, has doubts about these culprits. These doubts grow even stronger after the local self-service shop is robbed and the local tobacco store reports that it is missing a lot of imported cigarettes. Martin questions the children, inspects both shops and searches through the underground.
