The Lesnogorsk anomaly no longer exists, but the threat has not disappeared. An unknown powerful entity breaks out into our reality, and an entire APBR detachment dies in a massacre near Irkutsk. “Loyal”, a victim of an experiment to create a new generation of Changed, is going to use the carrier of a deadly plague as an instrument of his revenge. A bloody trail of brutal murders leads from Siberia to the Urals, and Moscow stalkers receive an order to destroy the St. Petersburg Source. In all these seemingly unrelated events, Initiate Oleg Kataev sees signs of an impending war between the messengers of the universal mind. Is anyone able to stop the mad Sower, eager to destroy humanity?