آسترید با ناپدید شدن مرموز یک کلاس مدرسه در سال هزار و نهصد و نود و نه ضربه روحی می خورد. 20 بیست سال بعد وقتی او متوجه می شود تنها بازمانده آن سال به طرز مرموزی درگذشته ، در صدد کشف حقیقت بر می آید.
قسمت 1
A chilling phone call during Astrid's radio show stirs up memories about her sister's disappearance and spurs her to investigate what really happened.
قسمت 2
Astrid returns to her childhood home to look for clues. Ida's relationship with Jakob unfolds and his fascination with a mysterious book takes root.
قسمت 3
Jakob leads Ida, Amelia and Falke to the island for the equinox. After learning more about the strange symbol, Astrid questions a former teacher.
قسمت 4
N/A
قسمت 5
A return address yields more clues, but Astrid's relentless search for answers causes concern. Ida feels lost and alone after the events on the island.
قسمت 6
Astrid confronts her mother as she closes in on the truth. Anger, accusations and revelations mar Ida's long-awaited graduation day.