Rath and Lotte race to stop the train robbery in time, while Greta’s conscience is torn when she falls into an assassination plot.
Lotte is kidnapped and held in an ominously familiar location, while Rath and Benda’s case against the Black Reichswehr stalls.
After discovering one of his most trusted colleagues has been murdered, Rath comes to suspect that the killer was someone on the inside
Rath undertakes a dangerous mission to recover evidence of the secret German airfield based in Russia.
Gereon is reunited with Helga, but his joy is short lived. With her mother dead, Lotte’s situation at home worsens.
Rath and Bruno finally get a lead to the location of the missing film reel, but after the truth come the consequences.
Kardakov seeks help in retrieving the Sorokins’ gold. Rath faces a moral dilemma, and Bruno makes a power play.
As Berlin becomes increasingly politically charged, those in charge look to change the discourse on the May Day violence.
