Elizabeth comes back from her injury and straight into what should have been a routine mission - but it goes awry, leaving her and Philip in fear not only for themselves but for their whole network... and family. Paige's suspicions have only grown in her mother's absence. Meanwhile, Stan continues to fall for the Russian agent who has started to play him.

As Philip investigates the fallout from the last operation, Elizabeth sticks close to home, concerned for her family until she gets a mysterious distress signal. Meanwhile, a walk-in arrives at the Rezidentura - providing both Nina and Stan with unique opportunities.

Philip and Elizabeth complete their next mission - but not without complications - and Philip's fears about Elizabeth's readiness for action deepen. Stan tracks the KGB walk-in which leads to much praise at work and a deepening of his attachment to, and dependence on, Nina. Meanwhile, Paige snoops into her mother's family background and Oleg begins to scrutinize Nina's secret operation.

Just when Philip and Elizabeth think they have a quiet road ahead, an old friend returns to complicate things. Not only do they have to intercept a target who could prove valuable to the Soviet Union, but they also have to take on an important rogue mission without the support of the Centre. Divisions inside the Rezidentura deepen between Oleg and Arkady, and there's an upheaval at the FBI as the chickens come home to roost for Agent Gaad. Meanwhile, Martha's frustrations threaten to blow Philip's cover.

Philip and Elizabeth are finally assigned a new handler as Philip works to clean up the mess of the last operation and Elizabeth, in disguise as Clark's sister Jennifer, does her best to smooth things over with Martha. As Stan searches for a missing scientist, Oleg and Arkady continue to argue over how best to handle the situation on their side, leaving Nina once again caught between the FBI and KGB.

A dangerous Naval officer becomes the key to Philip and Elizabeth's mission as well as a potential threat to their family's safety. Lucia, a Sandinista intelligence officer working with the Jennings, is tasked with getting Elizabeth access to Capitol Hill. Stan struggles with the potential costs of protecting Nina.

Philip uses his agent Charles Duluth to help him gain access to an early precursor to the Internet so that the KGB can bug American government communications. Nina faces the threat of a potential FBI polygraph exam, bringing her closer to KGB colleague Oleg.

Philip and Elizabeth both find themselves faced with painful turns in their various missions. Stan fights to gain access to an American military program that could give him the upper hand in his battle of wills with Oleg.

A new mission with international stakes has Philip calling on Annelise for assistance just as an old foe returns to D.C. with a vendetta. Stan makes a discovery that could put the FBI hot on the trail of illegals.

Elizabeth makes a shocking discovery about Kate. Philip pursues a contact for information about the new Stealth technology. Stan continues his pursuit of the illegals.

With Larrick closing in, Elizabeth rushes to exfiltrate Jared while Philip readies Fred for a crucial mission. Arkady finally plays his hand, forcing Stan to make an impossible choice.

Nina finds that her future is in Stan's hands. Meanwhile, Paige and Henry are moved to safety as their parents attempt to complete their assignment.

Tensions simmer between Philip and Elizabeth as they disagree over handling orders from the Centre. When Elizabeth loses key intel, Philip enlists Annelise on a mission with an unexpected outcome.

Elizabeth and Philip come together to deal with a mission gone wrong, but struggle to reconcile their ideologies; Stan welcomes a Soviet defector to America; Nina acclimates to her new living arrangements.

Danger mounts for Elizabeth and Philip as they get closer to the inner circle of the CIA Afghan Group.

Philip faces a moral dilemma while developing an asset. Philip and Elizabeth's friction escalates. Stan develops a theory with serious reprecussions for national security. Paige makes a surprising birthday wish.

Philip juggles the many women in his life while Elizabeth takes drastic measures to complete a mission. Stan asserts a plan to save Nina with an unlikely ally.

Gabriel has surprising information; Elizabeth begins to take family matters into her own hands.

Philip and Elizabeth feel the weight of a family secret while following up on the KGB's interests.

Martha and Clark's marriage meets its most challenging test yet; pressure on Philip intensifies.

Philip and Elizabeth struggle with the gravity of unexpected collateral damage.

Philip and Elizabeth deploy a plan for the C.I.A.'s Mujahideen visitors.

Philip and Elizabeth's home and work lives collide in new and dangerous ways. Nina struggles to figure out her next steps. Arkady assigns Oleg and Tatiana to an operation with uncertain potential.

Martha hosts an unexpected guest; Philip and Elizabeth must work a formidable Mujahideen commander.

Elizabeth and Paige take a trip that lands them in treacherous territory.

Elizabeth and Phillip are supposed to get a biological weapon sample but fail to make the exchange when someone is watching. Nina works Anton in hopes it will lead to her freedom. Paige wonders if she can trust Pastor Tim with her secret.

Philip tries with increasing desperation to get rid of a sensitive and dangerous package as family tensions in the Jennings House reach a boiling point when Paige shares a secret of her own.

Paige copes with new burdens that come with her family's secret - as Philip and Elizabeth struggle to contain their cover without destroying their daughter.

A devastating flaw during a mission forces Philip, Elizabeth, William, and Gabriel to confront the depths of their patriotism... and their mortality. In Russia, in striving to be a better person, has Nina put her life on the line?

Philip must consider his life with Martha and make a crushing choice from which there is no coming back.

Martha must finally face the truth she has denied - and her life may never be the same. Plus, a chilling new development in William's work forces the Jennings to face the realities of what a biological war would mean.

The Centre rushes to prepare Martha's exfil as Directorate S agents try to locate her but, it seems that a backup transport was also ordered. FBI tears up the Clark Westerfeld apartment. Martha almost walks into the FBI dragnet. Philip is overcome with self-recrimination...KGB may kill Martha. The FBI intercepts a call to Martha's parents from Woodley Park and stake out the area. Philip gets a call from Rock Creek Park; Elizabeth races to reach her and brings her in bruised but alive. Oleg does not know why backup transport was ordered. Gaad waxes philosophical about his FBI career in flames as the Jennings kids drink beer with Stan's son. Philip is finally honest with Martha, over Elizabeth's objections. Martha knows that she will be completely alone in Moscow. Will tomorrow's plane carry one rat or two? Or will Martha bite the Valium bullet and refuse to be forced to defect and commit further treason?

The Jennings hit their breaking points as they try to handle their local agents such as Martha.

The Day After premieres, making the stakes - and terrible consequences - of the Cold War plain. Even with that in mind, will Elizabeth be able to complete the painful process of the "Patty" operation?

When Paige's long-ago indiscretion threatens to resurface and destroy the family, Philip and Elizabeth find themselves scrambling - and Paige finds herself reevaluating who her parents really are.

Elizabeth completes the last steps of a very personal operation... but at what cost?

As Paige deals with last episode's trauma, she sees her mother in a new light... and finds she has inherited some of her parents' skills. Plus, has Oleg reached his breaking point with Stan?

In the season 4 finale, Elizabeth & Philip race against the FBI to retrieve a mysterious package. Paige finally begins considering whether or not she would like to enter the family business.

After witnessing Elizabeth kill two men, Paige trades in church for training sessions with mom. First, self defense. Second could tear the family apart. The beginning of the end for Paige and Matthew looms.

Stan and Oleg wrestle with the harsh consequences of their complicated history, as Philip and Elizabeth face a new mission with devastating implications for their country.

Philip and Elizabeth tell Paige more about the family business, but pressing new questions arise when an operation takes a ghastly and unexpected turn. Meanwhile, a sensitive package jeopardizes Oleg's life back home.

Philip and Elizabeth have qualms about a new assignment, while a specter from Philip's past creates unforeseen dangers. At the FBI, Stan makes a shocking play that could throw his career into turmoil.

Philip and Elizabeth receive surprising news about Henry -- and shattering news about a past operation. Stan might be falling in love, but Philip wonders if something darker is going on.

Phillip and Elizabeth are stunned by Gabriel with a sudden announcement and a crushing revelation about Philip's past; Stan and Aderholt lure a suspect into their web; Oleg and Ruslan lead their first target into an ambush.

As Paige becomes even more enmeshed in her parents' world, tensions with Matthew Beeman come to a head, Philip and Elizabeth's honeytraps take surprising turns, and Stan faces the consequences of overplaying his hand at the FBI.

A secret brings Elizabeth and Paige together, while, in Moscow, Oleg's own secrets put him under KGB suspicion. A new twist in the Morozov operation creates an opportunity that changes everything.

Philip and Elizabeth are thrown off balance when things with Tuan take an unexpected turn. Meanwhile, Henry makes a startling proposition and Stan has a disturbing encounter with Frank Gaad's widow.

Paige's snooping leads Philip and Elizabeth to make a choice that could shift the balance of their lives forever. Stan and Aderholt's recruitment of Sofia suddenly bears fruit.

A surprise assignment from the Centre divides Philip and Elizabeth, forcing them into a moment of profound crisis. Stan gives Henry a tour of the FBI -- but will he see too much?

As Philip and Elizabeth grapple with a momentous decision, Tuan takes matters into his own hands in the Morozov operation. Back in Russia, Oleg's investigation collides with the realities of the Soviet system.

Phillip and Elizabeth race against the clock as a life hangs in the balance, while Stan faces an uncertain future.

In the season 6 premiere of The Americans: it's autumn, 1987, and as a major arms control summit looms, Elizabeth is pushed to her limits as never before. Philip, meanwhile, has settled into running the newly expanded travel agency - until an unexpected visitor makes a disquieting request.

Elizabeth targets an old source who could tip the balance of the upcoming summit, as Philip deals with business at the travel agency. Stan learns an old friend is back in town.

In the aftermath of a disastrous operation, Philip and Elizabeth clash about how to handle things with Paige. Stan struggles to contain the growing risks of Sofia and Gennadi's fraying relationship.

After picking up a distressing piece of intelligence, Elizabeth takes extreme measures to get close to a Soviet negotiator; Philip shares some stunning news with Henry.

As the summit fast approaches, Elizabeth enlists Philip's help for a mission that could yield game-changing intel.

A sudden assignment pulls Elizabeth away from her family at a crucial moment. At the FBI, a major development leads Aderholt to approach Stan about an urgent investigation.

Phillip goes to Chicago to help Elizabeth complete her mission; Stan's suspicions grow.

Philip tells Elizabeth about his connection with Burov, Elizabeth uses the young intern to listen to an important meeting after the original plan fails.

Elizabeth chooses a side in the internal soviet fight, meanwhile Stan's suspicions of Elizabeth and Philip get stronger.

The Jennings family face a choice that will change their lives forever.

As Philip and Elizabeth grapple with a momentous decision, Tuan takes matters into his own hands in the Morozov operation. Back in Russia, Oleg's investigation collides with the realities of the Soviet system.

Philip and Elizabeth are thrown off balance when things with Tuan take an unexpected turn. Meanwhile, Henry makes a startling proposition and Stan has a disturbing encounter with Frank Gaad's widow.

With Larrick closing in, Elizabeth rushes to exfiltrate Jared while Philip readies Fred for a crucial mission. Arkady finally plays his hand, forcing Stan to make an impossible choice.

A secret brings Elizabeth and Paige together, while, in Moscow, Oleg's own secrets put him under KGB suspicion. A new twist in the Morozov operation creates an opportunity that changes everything.

As Paige deals with last episode's trauma, she sees her mother in a new light... and finds she has inherited some of her parents' skills. Plus, has Oleg reached his breaking point with Stan?

Phillip and Elizabeth are stunned by Gabriel with a sudden announcement and a crushing revelation about Philip's past; Stan and Aderholt lure a suspect into their web; Oleg and Ruslan lead their first target into an ambush.

In the season 6 premiere of The Americans: it's autumn, 1987, and as a major arms control summit looms, Elizabeth is pushed to her limits as never before. Philip, meanwhile, has settled into running the newly expanded travel agency - until an unexpected visitor makes a disquieting request.

Elizabeth chooses a side in the internal soviet fight, meanwhile Stan's suspicions of Elizabeth and Philip get stronger.

In the aftermath of a disastrous operation, Philip and Elizabeth clash about how to handle things with Paige. Stan struggles to contain the growing risks of Sofia and Gennadi's fraying relationship.

Philip and Elizabeth tell Paige more about the family business, but pressing new questions arise when an operation takes a ghastly and unexpected turn. Meanwhile, a sensitive package jeopardizes Oleg's life back home.