International businessman Aaron Schliemann manages to obtain four grams of californium, a unique radioactive substance obtained by Ukrainian nuclear scientists. Schliemann is going to sell the substance to the Iranians for ten million dollars per gram. To do this, he hires a yacht called “Souvenir” and heads for the shores of Bahrain, where he has an appointment with buyers. And Schliemann would have been a multimillionaire, but specialists from the FSB Counter-Terrorism Directorate would find out about the deal. And so Colonel Loginov, having received an order from the leadership, begins a risky combination, involving not only a weapons isotope dealer and Iranian buyers, but also bloodthirsty Somali pirates...