All secret agents of the VI Directorate of the RSHA were put on an emergency search. From Warsaw to Paris and from Copenhagen to Rome, Schellenberg's employees, together with Gestapo agents, were looking for a Soviet resident with the radio call sign "Mershant" ... And at this time, the captain of the GRU of the General Staff of the Red Army, Nikolai Osipov, was obtaining the most important information for the Soviet command about the newest Tiger tanks and their armor, was on... the Eastern Front, on Russian territory temporarily occupied by the Nazis. He had to complete another “impossible mission,” almost single-handedly resisting the full power of Hitler’s death machine. The novel is a direct continuation of the novel “Another Solution.”