A month ago in Moscow, there was an outbreak of an unknown disease with a 100% fatal outcome for the men, the girls turned into mysterious and bloodthirsty creatures, murders. Survivors wake up in the morning from the unexpected screams of the mutants that penetrated the base. It turns out that someone opened the door to the mutants from the inside. But who opened the door and why?

Valera's plan to break the checkpoint failed. Nick accuses Scatha of inactivity and softness and breaks off relations with him, but in fact, the reason is much deeper - the girl is in love with another member of the group and can not hide her feelings anymore. Who is in love with the impudent Nick? Who will betray friends to save himself?

Marina voluntarily goes to the laboratory of the corporation "Summit", after which she returns to the base, not noticing the shadowing. The journalist Katya gets to Moscow, where she immediately faces ruthless black-eyed virgins. Mitya is abducted by priests who honor the goddesses of death with black eyes, which, in their opinion, are called upon to purge the world of filth.

Valera brings Katya to the base of the survivors, who is looking for evidence of the involvement of Vershina in the creation and spread of the virus. Valera and Katya go on scouting to find a spare base. During the raids, they capture a mercenary who collects capsules from the ear shells of the mutants.

Nadia in search of her lover leads to a base of survivors a whole flock of individuals, both laboratory and wild. The survivors discover that they were left without weapons, someone betrayed them. Taking a blow at himself, Mitya takes the mutants from the base.

Mitya is shocked that Nadia understands him and even tries to communicate. Katya offers Valera mutual cooperation, the girl is interested in any information about the "Top", and in return she offers compromising information to one of the survivors.

Lina secretly leaves the base and goes in search of his mother, in the city she almost becomes a victim of mutants. To Nadia brings back the ability to understand and speak, she comes to her senses and learns to control her superpower. Nadia tries to accept herself as she was made by the virus, but she is very afraid of harming Mitya. Valera cannot accept the fact that Aizhan is an experiment.

Nadya and Mitya are walking along the empty city. Katya watches over them. Feeling the girl, Nadia turns into a mutant. Valera refuses to take part in the studies of the "Summit", he is against the experiments on Aizhan.

Nadia decides to conduct an experiment, she calls the murders into the mansion to check how much they obey her, and whether she can control them. A large accumulation of mutants alarms Dr. Bryl, he guesses the causes of the congestion and sends patrols for the alpha female. Valera fell in love with Katya, but as soon as she approaches the shelter, Aizhan screams.

Inga Belova understands that Mr. Haushofer expects results from her, she has no choice but to go to negotiations with Nadia and Mitya. Inga informs them that soon regular troops will enter the city to clean up the territory, all infected will be killed. Nadia is the only chance to save mutated girls. Mitya and Nadia agree to take part in the development of a vaccine against the virus.

Love does not mutate, so Aizhan saved the memories associated with Valera. She increasingly wakes up because she feels like she is losing touch with her beloved, who is secretly in love with Katya. After a conversation with Andrei, Katya realizes that, perhaps, Valera is in danger. The family in which Lina fell, is not so friendly.

Inga orders Professor Bryl to conduct an abortion and to use the fetal stem cells to develop the vaccine. Loboda continues to keep Valera in confinement, despite the fact that this does not give the desired results. Katya, suspecting Loboda is deceptive, is ready to sacrifice her own life to save Valera. Nadia, learning about Inga's disposition, is enraged...