Prince Muravyov is a high-ranking employee of the Military Intelligence of the General Staff of the Russian Empire. The Empire is no more. But the intelligence network, and, most importantly, the foreign secret accounts of Russian intelligence, remained. And the prince knows them. Both the whites and the reds are eager to get them. The prince's family was brutally killed by the Reds. But his son, a military officer, a military pilot and a wonderful warrior, who also masters oriental martial arts, survived. And the son takes an oath: to take revenge on the killers. An eye for an eye. And he also has brave and loyal friends who are ready to follow him even into the heat, even into the bloody lair of the Red Commissars.