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.

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.

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

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.

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.

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

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.

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.

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.

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.

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.

In 1929, a freight train traveling from the Soviet Union is hijacked. Meanwhile, Chief Inspector Gereon Rath from Cologne pursues a mission in Berlin.

The freight train arrives in Berlin. Tempers explode in Charlotte's household. Aspiring inspector Jänicke makes use of a surprising skill.

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.

Rath, Charlotte and Böhm attend Rot's mysterious event. Nyssen visits Helga, who questions her recent actions. Greta returns to court for sentencing.

In urgent need of money, Charlotte enters a lucrative dance marathon; Councillor Wendt pitches his plans to Nyssen; Rath visits Stennes in prison.

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.

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

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.

Rath confesses to a priest -- and later to Wolter. Charlotte charms medical student Rudi into performing a secret autopsy, which uncovers a vital clue.

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.

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

Abraham Goldstein arrives in Berlin as the secret organisation White Hand passes a verdict on a criminal; Rath investigates a boxing match.