Sarah Manning is an orphan. She had a difficult childhood and a complicated relationship with her abandoned daughter and her foster mother. But even in the present, her behavior can hardly be called exemplary—fights, theft, drugs. Everything changed one day when Sarah became an accidental witness to the suicide of a girl who looked exactly like her. It turns out that the resemblance is not a coincidence, but part of something far more mysterious—and deadly.
In the fourth season, new and ruthless enemies of Sarah emerge. A mysterious council of Neolutionists comes into play. Sarah faces serious doubts about whether she can handle the ever-growing challenges and continue resisting an enemy that is tightening its grip. Yet, even in moments of hesitation, Sarah still has friends willing to stand by her side…