As CIA Chief of Station in Kabul, Carrie makes a critical decision when her counterpart in Islamabad delivers urgent intelligence on a high value target. Saul struggles to adjust to his new role in the private sector.
An official inquiry brings Carrie back to the States, where she struggles with her ambivalence towards motherhood. Quinn spirals out of control, while a disgraced former case officer reveals disturbing new information.
Carrie is forced to intervene when Fara fails to recruit a key asset. Still reeling over events in Islamabad, Quinn zeroes in on a potential lead.
Carrie gets a tip from Redmond regarding Quinn's lead. Saul calls in a favor from an old friend in the Pakistani military. Fara uncovers a conspiracy.
Carrie tries to earn the trust of a frightened asset. Saul catches a break when he spots a familiar face. Quinn and Fara stake out a new suspect.
While Quinn takes an objective approach, Carrie puts her operation in motion and her life on the line to prevent a terrorist strike.
Lockhart comes to negotiate. Haqqani uses Saul as his shield. Carrie's investigation gets complicated, especially when someone tampers with her pills.
Carrie and Quinn organize a last-ditch operation. Saul extracts a painful promise from Carrie. Lockhart and Martha stall the ISI.
A trade with the Taliban for Saul's life angers Lockhart, forcing Carrie to improvise to salvage her mission. The CIA closes in on a security leak.
The security breach has far-reaching consequences as Carrie and Saul get caught in an attack on their convoy and Haqqani's men infiltrate the embassy.
When the embassy is evacuated and Quinn resists leaving Islamabad, Carrie puts her life on the line to get her whole team out of Pakistan.
Carrie and Saul investigate what she saw in Islamabad; Carrie tries to cope with the return of her estranged mother as her father is laid to rest.