Focusing on the Turquoise Mountain

Czechoslovak and Mongolian geologists are searching for copper in Mongolian mountains. So far, they have been unsuccessful and thus, the author of the research plan, Professor Pudil, leaves for Mongolia without informing either the Prague company, called Geoindustria, or its branch in Ulánbátar. In his search for copper, Pudil wants to rely on an old folk tale of the Turquoise Mountain, because copper locations are often of turquoise colour. The expedition divides. One group continues according to the plan and the second group pursues the Turquoise Mountain. Dr Mareš leading the Czech expedition, who is in the second group, completely disagrees with the action provoked by a folk tale. In Ulánbátar Pudil must explain the reasons for his sudden arrival. Pudil uses his visit to the Mongolian capital for a meeting with the director of a local library. He tells him that there are many tales of the Turquoise Mountain and each says something different. Therefore, the Professor wants to call the expedition off. During his flight back, he gets a message that Dr Mareš got lost in the mountains. The plain changes its course and starts searching for the lost man. Finally, they spot him and the pilot manages to land. Mareš runs to the plane holding stones of a turquoise colour as he had found the location of the copper deposit.