While crossing the border in the mountainous region of the Caucasus, the famous international terrorist Daoud was killed, and a detonator for a portable nuclear bomb was found in his possession. The contours of an ominous plan of international terrorism to carry out a terrorist act of unprecedented scale are gradually emerging. The investigation is trying to penetrate into the very thick of the Caucasian gang underground, but it is being protected by figures with significant official and political weight. And then the Sword of Nemesis division is sent to complete the task. Will he be able to uproot the deeply sprouted roots of terrorism?