Almost two years after the Embassy attack in Islamabad, Carrie is building a new life in Berlin. But her peace is threatened when a request from her boss forces her towards the dangerous world she left behind.

Carrie goes with Otto as part of his security team to a Beirut refugee camp, where she makes a disturbing discovery. Quinn gets a shocking message.

Quinn forces Carrie to take a necessary but painful next step. Numan learns of his partner's plan. Saul and Allison offer a deal difficult to refuse.

The hacktivists rise up. Quinn covers for Carrie. Dar and Allison assess the damage.

Realizing there's a mole and he's being surveilled, Saul orders a sweep of the Berlin CIA building. A good Samaritan brings Quinn into mixed company.

When Allison tries to get Saul to talk, she learns some disturbing news. The documents lead Carrie to an asset in Amsterdam. Quinn gets a new mission.

Carrie arranges a secret meeting with Allison. Flashbacks reveal the events that led to Allison's current duplicity and their connection to Carrie.

The BND uses a ruse and Saul's intimate relationship with Allison to prompt her to lead them to her handler. Quinn learns his captors' true intent.

Carrie spots a clue in the video of Quinn that could help pinpoint his whereabouts. With the release of the footage, a new threat emerges.

Carrie follows a clue found on Quinn. Saul tries a new tactic to get Faisal to reveal info on the impending terror plot. Allison gets secret orders.

Carrie begs a conflicted Qasim for help. Saul presses hard on Ivan in order to find Allison. Carrie reunites with Jonas and later gets two offers.