The year is 1988. A mysterious object is falling in the vicinity of a small Soviet town located in the area of a powerful missile defense system radar. The most ordinary sixth graders Lech, Tolya and Sema go in search of a meteorite in anticipation of fame and fame. While wandering through the forest, Lech gets lost. His search in the forest by police forces starts a chain of events that lead to the contact of one of the locals with something very strange.
Soon, mysterious events begin to occur in the city, and those very schoolchildren are among the first to pay attention to them. They notice that people seem to have been replaced and these "substituted" people behave extremely suspiciously: they do strange things and talk about incomprehensible things. The guys come to the conclusion that they are facing spies or saboteurs who are preparing a provocation in the city or on the radar. But in reality, everything is much scarier.… The main characters only have to solve the mystery of the meteorite, face to face with the inexplicable and unknown.
