Brody's loyalty to the mission wavers when he meets a ghost from his past. As Lockhart's confirmation looms, Saul stares into the precipice between success and failure.

While Carrie is near catatonic and confined to bed, Saul investigates the unsettling implications of her timeline; Walker secures a perch for his mission; Brody makes his final preparations for the Vice President's policy summit at the State Department.

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.

Security forces close in on Carrie and Brody. As Saul plans a last ditch rescue operation, Brody struggles to find redemption.

Fatima tells Carrie about a meeting her husband - a Hezbollah commander - will be having in Beirut with Abu Nazir, and Carrie and Saul call Estes to tell him and to request a special forces team to capture Nazir.

Brody embarks on a high stakes mission, but his fragile condition threatens the entire operation. Quinn makes an uncomfortable discovery about Carrie, while a sudden crisis forces Fara to rejoin the team.

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 and Quinn organize a last-ditch operation. Saul extracts a painful promise from Carrie. Lockhart and Martha stall the ISI.

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.

Brody finds himself prisoner again, but this time it's on American soil. Meanwhile, Carrie is forced to play second fiddle after her rash judgment call at the hotel as Estes is busy keeping Jessica off their trail. Dana's relationship with Finn goes to the next level when their date night turns deadly serious.

Max's expertise is needed for a rescue mission. Carrie notices something suspicious on the flight manifest. G'ulom launches a manhunt for Haqqani.

Carrie and Quinn make a discovery while Keane makes a decision and Max finds trouble.

Brody takes his car to be professionally cleaned and to have a strong smoke smell removed. Max and Virgil follow Brody and take photos of him. Brody then takes a cab to CIA Headquarters, where Carrie waits inside for his arrival. As he walks towards the building from the parking lot, she exits and walks past him. He is very surprised to see her and calls her name. She turns and greets him casually.

After new information comes to light, Carrie and Quinn pursue a key suspect in the Langley bombing. Saul deals with political backlash while Fara discovers the toll an intelligence job can take. Meanwhile, the Brody family gets startling news.

Sen. Paley investigates why Saul went to Moscow. Carrie's team launches the operation to exfiltrate Simone. Keane's recent decision backfires.

Saul begs Tasneem for any intel she can get on where Jalal might be hiding. An unlikely ally helps Carrie find a lead on the rumored Kremlin spy.

Saul catches up with an old friend and discovers evidence of covert activities by Estes. Brody and Vice President Walden find themselves at odds over the future of their political relationship, while Dana and Finn come to terms with their own differences.

Brody makes a necessary phone call. Saul teams up with Virgil and Max to dig up some information on one of their own. Carrie finds herself preparing for the most important meeting of her career.

Dangerously close to exhaustion, Carrie continues her hunt for Nazir and begins to suspect there is a mole in the CIA. Roya reveals her true colours under interrogation and Saul finds himself fighting to save his career under unexpected circumstances. Meanwhile, the Brodys struggle to maintain anything close to a state of sanity.

The relationship between Carrie and Brody becomes more complicated when they head into the countryside for the weekend, while Mike and Jessica face the fallout of the truth about their relationship, and Saul catches Aileen on the run to Mexico.

In the wake of the explosion, Saul finds Carrie hospitalized and manic, but realizes her chaotic theories have merit; before his congressional campaign begins, Brody takes his family on a weekend trip to Gettysburg, where he retrieves an important item.

Carrie tells the helicopter mechanic what was on the black box. Yevgeny offers Carrie a deal. Jalal forces one of his men to accept a horrific mission.

While Quinn takes an objective approach, Carrie puts her operation in motion and her life on the line to prevent a terrorist strike.

President Warner arrives in Afghanistan to make an announcement to the troops — and the world. Samira gets an upsetting visit from her brother-in-law.

Quinn learns the assassin he's tracking is linked to a place from his past. Max spots a familiar face at his new job and takes a risk to get evidence.

As Carrie and Saul reel from the news that Walker is alive, the intelligence community clashes on the best way to capture him; Brody learns a shocking truth about his captivity.

As Brody finds himself in increasingly desperate straits, he returns to his faith for guidance in an unexpected way. Carrie struggles to connect with Saul when a mysterious man offers to help her, but at a great cost.

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's meeting with Saad has grave repercussions for Sekou. In Abu Dhabi, Saul interrogates Nafisi for proof of an Iran-North Korea arms deal.

Carrie and Reda fight for their client while Quinn fights against his new life. Saul and Dar suspect Keane has a secret.

At O'Keefe's hideout, Saul begins negotiations. Carrie learns who the woman caught on camera is. Wellington issues a command behind Keane's back.

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.

Saul attempts to track down those responsible for the Langley attack and recruits an unlikely expert to follow the money trail. Meanwhile, Quinn takes matters into his own hands; Carrie learns who is really on her side; and the Brody family turn to therapy to mend their broken household.

Carrie and Franny are living with Maggie's family in DC. Saul and the federal employees detained after the attempt on the President-elect's life are in prison. President Keane's administration comes under scrutiny.

Keane is forced to make a show of good faith. A visit to a psychiatrist leaves Carrie rattled. Hidden cameras capture a new face in Wellington's home.

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.

Carrie resorts to desperate measures to figure out who is targeting her. The hackers negotiate the transfer of the rest of the documents.

The political powers that be make big plans for national hero Brody, but his increasingly erratic behavior threatens his media darling status; Carrie grows desperate for evidence linking Brody with Abu Nazir, as Saul directs her to focus on Nazir's money trail.

Carrie forms a team for an operation targeting Simone Martin. Saul follows a hunch about the hospital photo. Keane asks a widow for a delicate favor.

A still-recovering Carrie is sent to Kabul to help secure a peace deal with the Taliban. Elsewhere in Afghanistan, Max embarks on his own risky mission.

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.

Russia expert Sandy tells Saul she suspects Simone is still alive. Carrie faces Maggie in court. Keane's future rests in the vice president's hands.

Carrie gets a troubling call from Franny's school. Dar plots to prevent Javadi from reporting his findings to Saul. Quinn learns he's part of a deal.

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

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

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.

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.

Sekou buckles under peer pressure to prove he's not an FBI informant. Saul secretly seeks a second opinion. Quinn tails Carrie's suspicious neighbor.

After Saul warns Haqqani that there's a mole in his camp, the Taliban leader summons his son. Carrie receives a mysterious invitation from Yevgeny.

Saul hunts for Simone's link to Russia. Carrie flees with Franny after a blowout with her sister and later has an eye-opening chat with Dante's ex.

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.