 A Soviet TV-journalist is interested in the trail of some strange mystery embedded in a mountainous region of the USA. The reporter and a companion pick up a trail guide and hike off into the high mountains in search of one particular site. They eventually find it - a small village in which everyone seems sullen and withdrawn. In spite of their unusual attitudes, the villagers are also math whizzes, even the young kids. Searching a bit further, the journalist and the guide discover the explanation, but it will not be easy to get out of there and tell the rest of the world about it.