Asuccessfulsinglemother’scarefreesisterreappearsoutoftheblueonedaytostaywithherandherteenagedaughter.

Chloe, a single mother in a relationship with Alex, has her life turned upside down when her younger sister, Sadie, comes home after a long, unexplained absence. Though Sadie seems to want to settle in with her sister and 17-year-old niece (becoming quite a handful herself), she’s actually a deeply disturbed young woman who has a sinister agenda regarding anyone who gets between her and her big sister.

Based on the Meg Wolitzer’s novel about a group of friends who meet at an arts camp when they’re 15 in 1974. The series chronicles their relationships throughout the next three decades dealing with the great expectations of youth juxtaposed with the realities life hands you as you get older.

Prima ballerina Dominika Egorova faces a bleak and uncertain future after she suffers an injury that ends her career. She soon turns to Sparrow School, a secret intelligence service that trains exceptional young people to use their minds and bodies as weapons. Egorova emerges as the most dangerous Sparrow after completing the sadistic training process. As she comes to terms with her new abilities, Dominika meets a CIA agent who tries to convince her that he is the only person she can trust.