The government of the Republic of Andiana, in South America, invited a group of Russian specialist engineers to assist in building a hydroelectric power plant. At first, the Russians received a warm welcome and good working conditions. But when the station was already ready for launch, the power engineers were kidnapped by unknown people. Who are they—“contras,” “gringos,” or local bandits? And what awaits the captives? These questions must be answered by a major of the Airborne Forces, Andrey Lavrov—nicknamed Batyanya—because it was decided to drop him into the Andianian jungle. Everyone knows: Batyanya has never failed a mission. Even the ones doomed to fail…