When Meret and Simon are called away from their daughter's birthday to receive a wounded agent in their safe house, the man immediately raises red flags.

After setting a trap to see who's after them, Meret and Simon are each confronted with a familiar face, complicating their efforts to keep their cover.

Gregor's life hangs by a thread. Meret discovers another one of Simon's lies. Julika begins to suspect the presence of a mole inside the BND.

While Simon confides in Katya and Meret strikes out on her own to gain a new ally, Koleev doubles his efforts to draw them out in the open.

Julika digs deeper into the Belarus connection. Katya arranges a meeting with Koleev, leading him right to the doorstep of Meret and Simon.

Unable to let go, Koleev descends upon the safe house with everything he's got. Meret and Simon will have to trust each other in order to survive.