Charlotte Ritter's independent investigation leads her to the railway depot where the hijacked train is being held.
During a social gathering, Inspector Gereon Rath experiences intense flashbacks to his time on the Western Front during World War I. He recalls the last time he saw his brother, Anno, during a chaotic retreat.
In Season 1, Episode 7, the tension of the Weimar Republic reaches a breaking point as the investigation into the smuggled Russian train and the personal trauma of Gereon Rath collide. Episode 7 Overview
Benda confirms that Alfred Nyssen is illegally importing poison gas (phosgene) via the train, linking the operation to the "Schwarze Reichswehr"—a shadow military organization aiming to undermine German democracy.