Oskar is missing. Agnes worries the project could lose funding. Johan leaves. Minnie finds Amina's body. Oskar holds her at gunpoint but she escapes. No telephone contact is possible to the mainland and Gittan's boat is not in the dock.
A man is leaded by the cops through a basement in 1996. A girl stands on the Bay area waiting for her boyfriend, the date is 2016. Friends are meeting, and they meet the girl's sister. Soon they get to the cabin.
Hanne continues to irritate Johan and explore the hotel's horrific past and begins to suspect that there is something there that people can not explain.
Hanne finds a new drawing depicting a death in the lake, together with the recurring message 'Gäädek Jäämit' and looks for a local Sami person who can translate it.
The theories about who or what is behind the terrible events at Black Lake are sharply divided. Is it an evil curse? Lovers Johan and Hanne are now as far apart as you can get and she clings to Jostein.
The team know Amina left somehow. Uno tells Minnie that Josefine's daughter also went missing. He thinks they are together. The group visit the ruin of an old quarantine hospital. Amina's body is buried, uncovering a skull in the process.
Uno holds 1:1 chats. Johan finds a deal between Uno and Gittan, and Gittan's link to Isabell. Minnie finds stuff about missing refugees, speaks to Josefine's ex about Maja. Uno thinks she is hallucinating. Oskar says Josefine was murdered.
All is revealed (almost). Love, jealousy, revenge, murder, the tragic history of the island, and children lost and found. A final episode with just a few loose ends and more than one character convinced that unearthly forces played a part.
The situation in the isolated ski resort worsens, and Johan finds out who the mystery buyer is. What is the voice that the increasingly confused Jessan is talking about after her experience in the basement?
Johan has grand plans for his luxury resort, but as the temperature drops to dangerous levels, he struggles to keep the hotel going without the help of Erkki. Hanne is brutally attacked in the basement.