Following on from series one where an underground Russian revolutionary organization where murdered in a print works. The organization were instrumental in arranging the ...

Gereon Rath is reunited with Helga, but his joy is short lived. With her mother dead, Lotte's situation at home worsens. ...

Rath and Gräf undertake a dangerous mission to recover evidence of the secret German airfield based in Russia. ...

After discovering one of his most trusted colleagues has been murdered, Rath comes to suspect that the killer was someone on the inside. ...

Lotte is kidnapped and held in an ominously familiar location, while Rath and Benda's case against the Black Reichswehr stalls. ...

Crucial evidence falls into Rath's hands, while Lotte unearths a conspiracy to murder an international envoy. ...

Rath and Lotte race to stop the train robbery in time, while Greta's conscience is torn when she falls into an assassination plot. ...

Rath faces a stand-off for train carriage TY 23-05, and the truth behind the Sorokins' gold is revealed. ...