Charlotte and Ulrich try to piece together what happened in the bunker. In different times and worlds, Jonas and Martha work to gain each other’s trust.

Martha and Jonas travel to 2052 and get a glimpse of a grim future. In 1954, two residents of Winden go missing, and Hannah receives surprising news.

In 2020, a visitor delivers a warning to Claudia. The day before the apocalypse, Jonas begins to question Eva’s motives.

Adam holds Martha captive in 2020. On the day of the apocalypse, an increasingly frantic Martha begs Bartosz for his help.

Claudia reveals to Adam how everything is connected — and how he can destroy the knot.