The military adventures of the captain of the Separate Corps of Gendarmes, Alexander Georgievich Kudashev, continue. The main time of action: the most difficult and tragic period in the history of Russia - from the autumn of 1912 to the autumn of 1943. Location: Russian Empire, RSFSR, USSR, Persia (Iran), Afghanistan, India, Germany. Kudashev and his group manage to transfer documents of military-strategic importance from Persia to the RO GUGSH, the use of which in the Great Game can both prevent intervention and and speed it up. One by one, in a brutal struggle with German intelligence, Kudashev loses his comrades. However, fate gives him an unexpected gift - at a difficult moment it sends him love... The death of a fierce enemy - a resident of German intelligence - did not make the situation easier for Kudashev himself. Alas, he has to make sure that the intelligence officer is only a tool in the hands of big politics, a tool for a very unrespectable job... Kudashev’s life is saved by a man who has every reason to consider him his enemy...