Berlin Station

CIA officer Daniel Miller arrives in Berlin on a clandestine mission to unearth an anonymous whistle blower, alias Thomas Shaw, and reunites with his old friend Hector DeJean. As Daniel gets closer to Shaw, his quarry reacts in a murderous fashion.

As Daniel pursues Shaw, Station Chief Steven Frost and his associates Valerie Edwards and Robert Kirsch gather intelligence on a Georgian Islamic radical in order to avoid an extraordinary rendition by Langley.

Frost and Kirsch worry their secrets will be unearthed when Langley investigators sweep Berlin Station to ferret out fodder for future Shaw leaks. Meanwhile, Daniel's hunt for the mole is put at risk.

Daniel and Hector embark on a dangerous operation to track down Shaw. Meanwhile, Valerie finds out the truth behind Iosava, and Frost and Kirsch deliberate future plans for themselves and the rest of Berlin Station.

Daniel teams up with Esther Krug of the BfV to prevent the next Shaw leak involving a foreign defector. Valerie and Robert spar over strategy as her investigation into Iosava gains traction; Hector gets a late-night visit from Shirley Pimple.

German and American interests align when the Station learns the subject of Shaw's next leak: Chinese defector Houjin Lin. Daniel is teamed with Esther Krug to secret Lin out of the country before the leak breaks and counters Shaw's attack. Hector gets a late-night visit from Shirley Pimple.

In the wake of the botched Iosava Op and Clare Itani's kidnapping, Frost pursues traditional channels to negotiate Clare's release; Hector goes rogue, bringing Daniel with him.

Consequences from the Iosava catastrophe continue to wreak havoc on the Station; Daniel tries to track down Frost and Kirsch is asked to undercut Valerie as payback; Daniel finds himself the subject of a polygraph.

After confirming Hector's identity as Shaw, Daniel still faces various obstacles in turning him over to the Germans; Frost remains a fugitive, Kirsch continues to trail the rendition; Valerie pursues her suspicions about Robert's loyalties.

Daniel leads the Berlin Station crew in gathering evidence that will illuminate Langley's role in the Iosava rendition; Hector takes a new approach to atoning for bad behavior; the Shaw mantle is passed.