"Heroic Fiction" - a series of domestic science fiction works about the Popadans, wars and alternative history. Our man is behind the front line. Once on the Great Patriotic War, our contemporary becomes the best saboteur-liquidator of the GRU. And his elite reconnaissance squad specializes in the most risky, most suicidal missions behind enemy lines. What should the border guard do in 1942, when thousands of kilometers from the front line to the state border? Where will his professional skills come in handy? Of course, in military counterintelligence! Only now the "border guard" from the future catches not violators and smugglers, but German scouts, radio operators and paratroopers-saboteurs.