Jonas returns to 2020 to save everyone. Things go terribly wrong. Or, do they?
Claudia tries to stop her father Ego from dying in '87. Back in '54, Ulrich gets a visit from a familiar face.
Jonas goes back to the day before his father commits suicide in 2019, hoping to alter the course of time.
Jonas learns more about the Apocalypse from Adam.
Jonas wakes up in 1921. In 2020, Charlotte and Hannah piece together what they know.
Egon begins piecing things together over the years. Claudia finds her way through time.
In '87, Claudia meets herself. In 2052, Jonas is caught trying to get into the dead zone.