Dark is a German science fiction thriller streaming television series co-created by Baran bo Odar and Jantje Friese. It ran for three seasons from 2017 to 2020. In the aftermath of a child's disappearance, Dark follows characters from the fictional German town of Winden as they pursue the truth. They follow connections between four estranged families to unravel a sinister time travel conspiracy which spans several generations. The series explores the existential implications of time, and its effect on human nature.