Valerie Edwards sends Daniel Miller and Robert Kirsch on an urgent mission to Estonia, where they meet renegade CIA Officer Rafael Torres and uncover signs of a covert invasion by Russian forces.

Berlin Station follows up on the evidence Kirsch brought home from his mission, crystallizing their theory about a possible upcoming invasion.

The Station enlists Rafael Torres to track down a missing comrade's, Daniel Miller last known location, leading him to hostile territory. Kirsch visits an old friend.

The Explosion of a Fishing Boat is detected. CIA Agent Rafael Torres violates the Station Chief of Berlin Station Orders and retrieves the burned body that he believes is of Missing CIA Agent Daniel Miller.

Kirsch and Torres must risk their lives to secure their fallen comrade's location.

Daniel and Hector are being hunted by Vassily Krik. They manage to find shelter in a green house in the woods where a well kept secret will be revealed..

Mere hours remain before enemy forces topple the Estonian government. Without Langley's backing, Berlin Station acts alone in one final desperate push to prevent the fall of a nation.