Carrie struggles to 'keep it light' after spending the night with Aleksandr. Meanwhile, Miranda gives Robert elevator 'custody' after being confronted with some heavy words.

Bill looks for allies in Washington, D.C., and tries to land an endorsement from Congressman Clark Paley. Fearing Wanda spilled the beans to J.J., Joey goes to extremes to safeguard their dirty secret. Barb and Sarah hit a young Native American woman with their car.

Renata faces an uncertain future when Gordon lands in legal trouble. Corey asks Jane out on a practice date. After a challenging therapy session with Dr. Reisman, Celeste opens up to Mary Louise about her relationship with Perry. Ed confronts Madeline about her secrets.

Having survived his battle with Gyp Rosetti, Nucky makes a peace offering to Joe Masseria while working the odds with Arnold Rothstein. Chalky prepares to open the Onyx Club on the Boardwalk, and a new prohibition agent, Warren Knox, arrives in Atlantic City.

Tony's feud with Ralphie escalates when Ralphie is passed over for promotion. Meadow and Jackie grow closer, while the Soprano crew loses a member in an unexpected fashion. Tony strikes up a relationship with one of Melfi's other patients.

Joffrey challenges Tywin. Bran tells a ghost story. In Dragonstone, mercy comes from strange quarters. Daenerys waits to see if she is a conqueror or a liberator.

Bunk and Freamon chase their crime scene, a container ship, to Philly, where none of the crew finds it useful to speak English. Elsewhere, Lieutenant Cedric Daniels, disgusted with his exile to the evidence control unit, lets it be known he's going to leave.

Carrie struggles to 'keep it light' after spending the night with Aleksandr. Meanwhile, Miranda gives Robert elevator 'custody' after being confronted with some heavy words.

Russell's birthday bash is marred by a revelation about his wife's college boyfriend.

Bill looks for allies in Washington, D.C., and tries to land an endorsement from Congressman Clark Paley. Fearing Wanda spilled the beans to J.J., Joey goes to extremes to safeguard their dirty secret. Barb and Sarah hit a young Native American woman with their car.

Renata faces an uncertain future when Gordon lands in legal trouble. Corey asks Jane out on a practice date. After a challenging therapy session with Dr. Reisman, Celeste opens up to Mary Louise about her relationship with Perry. Ed confronts Madeline about her secrets.

Having survived his battle with Gyp Rosetti, Nucky makes a peace offering to Joe Masseria while working the odds with Arnold Rothstein. Chalky prepares to open the Onyx Club on the Boardwalk, and a new prohibition agent, Warren Knox, arrives in Atlantic City.

Russell's birthday bash is marred by a revelation about his wife's college boyfriend.

When a sexually transmitted epidemic rages across the United States, the totalitarian government rounds up those suspected of infection to be placed in quarantine and left to die.

Carrie struggles to 'keep it light' after spending the night with Aleksandr. Meanwhile, Miranda gives Robert elevator 'custody' after being confronted with some heavy words.

Carrie wonders how many more old-fashioned romantic gestures from Aleksandr she can stomach. Elsewhere Samantha is romancing the notion of larger breasts….but is given something more serious to swallow.

A plot to sabotage a standardised test jeopardises Russell's job as Gamby is caught in the middle.

Pressed by Coburn, Bill gets his family to stage an elaborate rally announcing his candidacy. Don takes a bullet for Bill over insurance discrepancies caused by his multiple wives. J.J. approaches Alby with a partial solution on how to dispose of a "flock cast adrift".

Mary Louise tries to get closer to Jane. Rather than address her troubles at home, Renata focuses her wrath on Principal Nippal. Madeline is forced to confront her issues at a couples therapy session with Dr. Reisman. Celeste remains conflicted by her memories of Perry.

Following Dean O'Banion's orders, Van Alden muscles for Al Capone. Harlem gangster Dr. Valentin Narcisse arrives in Atlantic City, clashing with Chalky and Nucky over the loss of an employee. In Washington, Agent Knox aligns himself with J. Edgar Hoover.

Tony's relationship with Gloria heats up when they pay a visit to the Bronx Zoo. A.J. is busted for vandalising his school, while Christopher gives Adriana the gift of a nightclub. Jackie Jr. tries to break into his late father's business despite Tony's discouragement.

Tyrion is sent outside the walls of King's Landing to greet a royal party from Dorn. Jon Snow finds himself on trial over his time with the Wildlings and the death of Qhorin Halfhand. Daenerys heads toward the slave city of Meereen, and Arya runs into a familiar face.

Sobotka reprimands his nephew Nick for stealing the cameras and orders him to bring the cargo back before it's too late. Meanwhile, McNulty is on a self-assigned moral mission to identify his floater, but his old partner, Bunk, says they have a more pressing matter.

Carrie wonders how many more old-fashioned romantic gestures from Aleksandr she can stomach. Elsewhere Samantha is romancing the notion of larger breasts….but is given something more serious to swallow.

A plot to sabotage a standardised test jeopardises Russell's job as Gamby is caught in the middle.