Nyssen finds a way to get his mother’s money. Rath learns who Helga’s benefactor is. Marie-Luise Seegers approaches Katelbach’s landlady with an offer.

Desperate to find Weintraub, the police consult a psychic. Toni’s job takes an unexpected turn. Moritz’s association with Horst puts him in danger.

An associate of the Armenian is released from prison. An act of sabotage kills an actress during filming. Helga secretly visits a doctor, as does Rath.

Rath hits an unexpected snag while investigating the Benda case, and later tracks down the movie set gaffer. Charlotte is visited by her older sister.

Wendt finds a way to change Greta’s testimony. Nyssen’s aide asks bank clients about their stock purchases. A casting call is held to replace Betty.

Evidence from Krempin’s home reveals his and Rot’s interest. A neighbor gives Charlotte something her mother left. Gräf accesses the Benda case file.

Greatly outnumbered, Rath, Henning and Czerwinski use their wits to fight their foes. Svetlana is tracked down. Dr. Schmidt forces a truth to be seen.

Jänicke spots a match that leads to two suspects in the Red Fortress massacre. Blackmail and bribes fuel a Soviet-German tug-of-war over the train.

Trochin transacts his deal with Benda. Moritz snoops in Wolter’s cellar. Rath and photographer Gräf gather proof of a secret air force base in Lipetsk.

The ballistics report in a police officer’s murder casts suspicion on two colleagues. While her employers are out, Greta steals a moment with Fritz.

Greta witnesses a horrifying scene. In police custody, the Black Reichswehr leaders are visited by a collaborator. Charlotte fights for survival.

A radio announcement makes Rath realize what the Black Reichswehr is planning. Charlotte stumbles upon a find that she hopes will save her life.

Defying Benda’s orders, Rath and Charlotte race to intercept the train. Helga speaks her mind at a memorial. Greta participates in a vengeful plot.

A mass grave is found in the woods. Charlotte’s sister Toni makes a troubling discovery. A meeting with Homicide leads Rath to a dreadful realization.

Beneath the decadence of 1929 Berlin, lies an underworld city of sin. Police investigator Gereon Rath has been transferred from Cologne to the epicenter of political and social changes in…