In Dark episode 6, the Nielsons sink deeper into grief over the loss off Mikkel, with each expressing it in a different way. Jonas goes deeper into the caves than he ever has before. Regina and Alexander get some bad news. And Ulrich does the thorough investigation into Mads’ disappearance that Egon failed to do in 1986, answering more than one question in the process.
Episode 6 opens on a flashback to 1986, when Ulrich and Katharina tied Regina to a tree near the cave and left her there for hours, long after it was dark. She sees something that frightens her enough to scream.
Regina wakes up in bed in the present day. Alexander wakes up too, and comforts her that it’s only a nightmare.
The next morning, Charlotte instructs the entire police department that they’re intensifying their search. She wants them to knock on every door, question everyone, coordinate with other agencies in the area, search the records for similar cases going back 50 years, search every basement. They’ll be working double shifts until they solve this case. They just have to find the one clue that breaks the case.