Kolosov orders the rosary to be returned to Oleg, and he stops the hunger strike. Due to the incident with the rosary, Oleg’s authority in prison increases, and prisoners from his squad invite him to become a watcher. However, Rokhlin can not calm down and arranges a total check at the post office, fearing that some of Oleg’s complaints could reach higher authorities. Soon Oleg returns to the hut. The prisoners are happy for his release and welcome the new beholder. But Feda Kvas is not to his liking, and he begins to prepare to kill the opponent. Meanwhile, Gennady, in his laboratory, is trying to finish the series of experiments that he had begun together with his friends, but nothing comes of it. After Alexey killed Maxim and Tsygelnik and was arrested, Oleg was imprisoned, and Veronika began to drink too much, the work of the laboratory was almost paralyzed. Gennady decides to take Veronika out of hard drinking to continue research - after all, his business partner, Melchalov Sr., is rushing to conclude a deal.