At the border crossing in the mountainous area of the Caucasus, the well-known international terrorist Daud is killed. A detonator for a portable nuclear explosive device is found with him. Gradually, the outlines of a sinister international terrorism plan come into focus—a terrorist act on an unprecedented scale. The investigation tries to penetrate deep into the Caucasian underground bandit network, but it is “covered” by figures with significant official and political weight. And then the division “Sword of Nemesis” is dispatched to carry out the mission. Will it be able to uproot the deeply grown roots of terrorism?