Berlin, April 1929: Cologne police lieutenant Gereon Rath joins his colleague Bruno Wolter in the investigation against a porn ring in Berlin. After a raid his case turns into a…

Martha meets the Stranger and learns his true identity. Claudia tries to prevent Egon’s death in 1987. Hannah travels to 1954 to see Ulrich.

In 1953, the disfigured bodies of two boys are exhumed at a construction site, the future location of Winden’s nuclear power plant.