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.

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.

Benda's widow gives Wendt a piece of evidence. A crisis bonds Helga and Nyssen. Fingerprints are found on the knife, but Charlotte notices an oddity.

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

Despite Gennat's doubts, Rath organises a meeting with all of the wrestling club bosses; Malu rethinks her plan; Esther looks for work as a musician.

The SA and SS face each other in the Stennes Putsch; Wendt wants the police to intervene; Toni meets an ally.

While interrogating König, Rath loses control of the situation. Charlotte moonlights to make ends meet. An alter ego commits a betrayal.

Greta goes on a romantic outing with Fritz. Krajewski finally reveals where the film is hidden. A new patient is brought to Dr. Schmidt for treatment.

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.

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.

Rath picks up Richard for a lineup. Ullrich finds a hair in a locket Tilly wore. Nyssen presents a proposal to Gen. Seegers. The Phantom strikes again.

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.

Litten remembers a legal loophole that could save Greta's life. Charlotte visits the inn mentioned in her mother's love letters. Wall Street crashes.

As a dead man on a park bench in the Tiergarten grabs the attention of the homicide squad; Toni gets caught; Charlotte makes a terrible decision.

Malu Seegers and Dr Völcker pursue a deadly plan; Charlotte makes a terrible discovery; Helga tries to escape from her kidnappers.

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.

Widow Behnke kicks off her high-stakes rescue plan; Stennes instigates a hall battle in the Moka Efti; Charlotte makes a secret observation.

Rath's pharmacist gets shady instructions. Rath learns who's behind the train smuggling operation and why, and recalls the last time he saw his brother.

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.

Litten faces a setback in appealing Greta's conviction. Wendt talks economics with Gen. Seegers's daughter. An unconscious Weintraub is forced to talk.

As an SA squad marches through town, Charlotte is called to a crime scene; Nyssen throws a huge party with Helga and makes an important announcement.

Rath brings Moritz to the castle; Charlotte tells a lawyer about the deaths among street children; Goldstein takes drastic measures.

At the May Day protest, police action spirals out of control. A body is found in a canal. An unsuspecting Svetlana returns to her apartment.

Kardakow realizes his first instinct was correct. A photo enlargement yields two leads. Rath and Charlotte get key intel from a colorful character.