In the late spring of 1185, the regiment led by Prince Igor, which included the squads of Seversk Rus', goes on a raid against the Polovtsians. Prince Igor enters the golden stirrup. He leaves for an open field. But in the Russian steppe, death awaits... Who is to blame for the defeat a large and well-trained army? The commander’s mistake or someone’s betrayal? The Kiev prince instructs his best swordsman, the gray-haired veteran Khoten, to assemble a reconnaissance detachment from selected warriors and go with him on a deep raid to find out the reasons for the defeat. What revelations might a reconnaissance group's march into the very heart of enemy land, following in the footsteps of Igor's regiment, lead to?