The Red Spy

Episode 12 (1x12)

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Ferrari, having received an order to go into hiding, gets on a train to Warsaw with a young agent tasked with impersonating her son. Suspecting something was wrong, El jumps off the train after checking his documents. Yasha goes to Stolz's house to pick up the documents, and notices an ambush there, and one of the cars - Ermler. Miraculously, he manages to save the engineer from arrest. Soon, El appears at Max's house ...