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

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.

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.