Jonas goes back to the day before his father commits suicide in 2019, hoping to alter the course of time.
Egon begins piecing things together over the years. Claudia finds her way through time.
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.
In 1953, two kids are found dead on the construction site where the Winden nuclear power plant is about to be built.
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.