Eight soldier tags were taken from eight killed monsters in different parts of the forbidden territory. The eight soldiers of the escort detachment who went missing will never tell what happened to them and why the Exclusion Zone subjected them to such a terrible mutation. But there were only nine of them in the detachment, and one of them was Lyuba Fedorova’s older brother - her the only dear person on earth. Having not received clear answers from the military leadership, the girl makes a desperate attempt to penetrate the Perimeter on her own in order to personally check the numbers on the tokens and discover traces of her brother - at least some traces of him on the anomalous paths.