Children start vanishing from the German town of Winden, bringing to light the fractured relationships, double lives, and dark past of four families living there, and revealing a mystery that spans four generations. The story begins in 2019, but spreads to include story-lines in 1986 and 1953 via time travel, as certain characters of the show's core families grow aware of the existence of a wormhole in the cave system beneath the local nuclear power plant, which is under the management of the influential Tiedemann family. During the first season, secrets begin to be revealed concerning the Kahnwald, Nielsen, Doppler, and Tiedemann families, and their lives start to crumble as the ties become evident between the missing children and the histories of the town and its citizens. The second season continues the intertwining families' attempts to reunite with their missing loved ones, several months after the first-season finale, in 2020, 1987 and 1954, respectively. Additional story-lines set in 2053 and 1921 add new aspects to the mysteries, and the secret Sic Mundus fellowship, a major force in an underlying battle for the ultimate fate of the people of Winden, is explored, as the season counts down towards the apocalypse – a supposed destruction of Winden and death of many of its citizens. ... https://www.youtube.com/watch?v=7P8_D3C0Y4A