Charlotte gains access to the power plant. Ulrich interrogates the scared Helge in the nursing home. Jonas is looking for Mikkel when the stranger speaks to him. He warns him not to interfere in the past.
Tropes:
- Burn Baby Burn: After Jonas decides to not bring Mikkel back to the future, he burns his father's suicide note.
- Cassandra Truth: Egon evidently doesn't believe Katharina when she testifies on Ulrich's behalf.
- "Eureka!" Moment: Once his mother says the man on the eve of Mads's disappearance 33 years ago reappeared the day before, Ulrich connects the dots to the time-travelling Helge Doppler.
- Grandfather Paradox: In this case it would be a Father Paradox. The Stable Time Loop averts it when Jonas is stopped by the stranger from taking Mikkel back to his own time.
- Internal Reveal: Katharina tells Ulrich she knows about his affair.
- Oh, Crap!: Aleksander Tiedemann has a subdued moment of this as he sees the search warrant
- Ret-Gone: The stranger warns Jonas that this will happen to him if he brings Mikkel back to 2019.
- The Reveal: Helge Doppler in 1986 was responsible for the child kidnappings.
- The desolate cabin which Charlotte finds is the same cabin where Erik Obendorf was kept in 1986.
- Surprise Incest: Downplayed. Jonas realizes that Martha is actually his aunt.
- Tattooed Crook: Noah displays his back tattoo on all his glory as a time breach occurs.
- The Atoner: Present Helge is clearly regretful of his part in the kidnappings as he leaves the facility to stop Noah.
- This Is My Boomstick: Downplayed. Officer Tiedemann is baffled when he sees Jonas's modern headphones.
- What Year Is This?: When Jonas arrives at his school in 1986, he asks Regina what year it is.
- You're Insane!: Charlotte's reaction to Ulrich claiming Helge is behind all the kidnappings.
