Old Helge tries to stop himself, 33 years ago. Noah enacts more of his plan. Jonas discovers one more terrifying truth.
Ulrich finds himself in a predicament with police. Hannah has other secrets from '86.
Jonas navigates 1986. Ulrich investigates Helge, as Charlotte begins wondering about her father-in-law, too.
Ulrich discovers life shattering secrets from his past. Jonas searches the caves using maps left by his father.
Events from 1986 and 2019 intertwine, as Mikkel is perpetually lost in the past.
Charlotte investigates unofficially, and discovers more about her husband. Helge's connection to the past emerges more.
In '86, little Mikkel is lost without any idea of how to get home, as strange events similar to those later in 2019 are happening.