A dangerous terrorist nicknamed Azer escaped from a Norwegian psychiatric hospital. The search for the criminal was entrusted to the special combat group of German Taleyev. The fighters understand that this escape is not accidental. Someone is planning to use Azer to carry out a large-scale terrorist attack. But where and when will it happen? The investigation leads Taleev's team to one of the northern cities, in the port of which the dismantling of a nuclear submarine reactor is in full swing. It seems that the deadly action is planned here. The fears of specialists intensify when it becomes known about the upcoming visit of the Russian President to the city...