Poklad rytíre miloty (1989)

On 25 April 1605, the knight Milota was killed by the royal armourers while escaping from the castle of Temice. However, the robbed treasures were not found in his possession. Almost 400 years later, Jindra, Tomas and eighteen-year-old Alena spend their holidays at the castle with their grandfather, the castellan. The castle needs repairs, but there is no money for them. Tomas and Jindra decide to find Milot's treasure, which could help the castle. The visitors are guided by Alena and two temporary workers, Roman and Petr. Among the tourists, Professor Horák, who shows a suspicious interest in the castle's collections, attracts the boys' attention. The boys try to search for the treasure in various places: in the tomb in the old chapel, in a place called the Slain Man's U, and in the castle. Once they witness an unknown robber swap a precious vase for a fake and hide the original under the bed. One of them draws a portrait of the suspicious man, who is the engineer Sebesta, who is often the target of little Kubicek's successful stunts. The Pioneers start patrolling around the castle, and Jindra calls Public Safety. The children discover that Horak is beyond suspicion and discover the real thieves. It's Engineer Shebesta and Guide Peter. Shebesta takes the vase from under the bed and he and Peter flee in the car. They have no idea that Tomas has returned the real vase to the display case and put a fake under the bed. After a dramatic chase, the two thieves are caught. Under the Dragon Rock, the tireless Tomas eventually finds the lost box of Knight Milota.