In 1986, four weeks after the disappearance of Mads Nielsen, a desperate Mikkel is found by police chief Egon Tiedemann, who suspects he has been beaten by the teenage Ulrich.

Mikkel is brought to the hospital by Ines, then a nurse, who gains his trust. Anyhow she get his trust and take care of him.

At the nuclear plant, newly elected director Claudia Tiedemann, Egon's daughter, and Regina's mother, inform her predecessor Bernd Doppler about the  secret barrels hidden in the nearby caves.

Bernd's son Helge, gives Claudia a book: Eine Reise durch die Zeit (A Journey Through Time) by H. G. Tannhaus. Meanwhile, as the town's electricity is flickering.

Teenage Charlotte starts investigating the deaths of multiple birds. And sketches the diagram of the bird.

Shy young Hannah has unrequited feelings for Ulrich, and Regina is being bullied and engages in self-harm.

A flock of sheep is found dead from cardiac arrest with their eardrums ruptured, and, in an undisclosed location, a man surrounded by clocks tinkers with a brass machine.

Mikkel escapes from the hospital and returns to the caves; after breaking his leg, he calls for help.