Charlotte tries to find a connection between the disappeared boys and the dead birds, which – just like the dead boy – are found to have burst eardrums.
The birds also show similar symptoms to birds found after the Chernobyl disaster, and Charlotte suspects connections to the Winden events of 1986.
Meanwhile, her marriage to her husband Peter is crumbling since he was discovered to be having an affair with a transgender sex worker named Bernadette.
she finds evidence that Peter was out driving the night of Mikkel's disappearance, despite him claiming otherwise.
Their oldest daughter, Franziska, confides in Magnus Nielsen that she plans to leave Winden due to her parents' wrecked marriage.
Franziska's deaf younger sister, Elisabeth, goes missing after school, but eventually returns home, explaining that she met a mysterious man, Noah, who gave her a watch once belonging to Charlotte.
Meanwhile, Peter's father Helge, who is suffering from dementia, is found roaming the forest, claiming that he "must stop Noah".
The next morning, a hooded figure approaches Elisabeth's friend, Yasin, and tells him that Noah has sent him.