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.

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

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.

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.