Following her grandmother's death, Sky is forced to live with her estranged family members and go to Northford High School, where her twin sister Luna attends for a bright future. However, that dream suddenly turns bleak when tragedy comes upon them.

The authorities conclude that Luna's tragic fate is self-inflicted, but Lydia remains convinced that there is foul play. Later, Sky is left shocked and alarmed after discovering a disturbing video involving her late twin sister.

Sky stumbles upon unsettling videos of Luna being bullied by Z. She shows it to Tania, only to be surprised that her mother knows what her twin sister went through all along. Archie discovers Harry’s dirty secret.

As Sky dives deeper into her theory, she learns that Luna was romantically involved with one of Northford High’s students. Meanwhile, Lydia conducts her own investigation into Luna’s death.

Sky probes Obet about his past relationship with Luna. Archie ends up in the hospital after taking dangerous drugs. Fed up with his father's harsh words, Archie stuns Harry with another revelation.