Nathanael, a young scientist, arrives in a small resort town. A sensitive and kind mentor not only becomes the idol of all boys who dream of long-distance travel, but also engages children in the search for treasures hidden in a medieval fortress.
The third film of the film trilogy ("Personally known", "Emergency assignment", "Kamo's Last Feat") about the Bolshevik revolutionary S.A.Ter-Petrosyan, known as Kamo (1882-1922).