New York Sour
Season 4, Episode 1 Unrated
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Season Four Premiere. Having survived his epic 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, but the impulsive Dunn Purnsley clashes with a booking agent. A fresh-faced prohibition agent, Warren Knox, arrives in Atlantic City to learn the ropes from Agent Sawicki. Gillian seeks custody of Tommy while trying to find a good man to keep the Artemis Club afloat. Eli's college-age son Willie turns to Nucky for career advice. Al Capone enlists his brothers, Frank and Ralph, to help him expand his business in the Chicago suburb of Cicero. Richard Harrow returns to his violent ways.
Resignation
Season 4, Episode 2 Unrated
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Now working as a delivery man for Dean O'Banion, Van Alden is ordered to keep tabs on Al Capone, joining the ascendant mobster to help keep Cicero voters informed at a political rally. 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, director of the newly formed Bureau of Investigation. Harrow fails to finish a job in Milwaukee, while Eddie demands a promotion after 11 years of service. With a business opportunity on the horizon, Nucky departs for Florida.
Acres of Diamonds
Season 4, Episode 3 Unrated
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Nucky has reservations about investing in a Tampa land deal engineered by transplanted bootlegger Bill McCoy. While there, he befriends local speakeasy owner, Sally Wheet. Valentin Narcisse books a sexy jazz singer, Daughter Maitland, to perform at the Onyx; later, he gauges Dunn Purnsley's allegiance to Chalky. Willie, Eli's son, turns to Mickey Doyle and his bootleg warehouse to elevate his social standing in college. Gillian agrees to pose as Roy Phillips' wife to impress a possible partner. Harrow tries to bury his past, though not before dealing with some unfinished business with Emma.
All In
Season 4, Episode 4 Unrated
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Nucky gets to know Arnold Rothstein over a card game, and sizes up an unexpected partner for his Tampa land deal. A newly promoted Eddie Kessler gets detoured after making a train-station delivery. When one of their collectors is incapacitated, Al and Frank Capone decide to finish his route, enlisting a reluctant Van Alden to tag along. Agent Knox fills Hoover in on the Thompson operation, vowing to exploit Nucky's weakest link. Chalky is intrigued by Daughter Maitland's presence. Dunn Purnsley goes to Harlem, and is courted by Valentin Narcisse. Willie and Clayton, his college roommate, carry a practical joke too far.
Erlkönig
Season 4, Episode 5 Unrated
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Nucky heads to Philadelphia to deal with the fallout from Willie's liquor fiasco. Eddie Kessler is detained by Agent Knox, who uses physical and psychological tactics to elicit information about Nucky's organization. A desperate Gillian turns to an unexpected source to score a fix, and is rebuffed in her attempt to reunite with Tommy. In Cicero, Van Alden is recruited by the Capones to pay an election-day visit to local factory workers opposed to the Capones' candidate of choice.
The North Star
Season 4, Episode 6 Unrated
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After a cautious reunion with Margaret in New York City, Nucky heads to Tampa to work out details of his land deal with Bill McCoy. While there, he reconnects with Sally Wheet. Richard Harrow returns to Atlantic City and makes a confession to an ailing Paul Sagorsky, who encourages him to get over the past and return to Julia and Tommy. Having lost J. Edgar Hoover's confidence, Agent Knox finds a new way to gain Eli's trust. Meyer Lansky decides to go it alone on the Tampa land deal when Lucky Luciano gets spooked by an investor, Vincenzo Petrucelli, who has ties to Joe Masseria in New York. Chalky takes his frustrations out on Daughter Maitland.
William Wilson
Season 4, Episode 7 Unrated
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Eli confronts Nucky after Willie makes an unpopular decision. Margaret has a surprise encounter at her job on Wall Street. Joe Masseria orders Lucky Luciano to return to Tampa and deal with Vincenzo Petrucelli. Gillian goes cold turkey, with Roy Phillips' help. Still seething over his brother's death, Al Capone tries to get Johnny Torrio to turn on rival gangster Dean O'Banion. As Chalky White and Daughter Maitland's relationship deepens, Valentin Narcisse exerts his control over Dunn Purnsley and the Northside.
The Old Ship of Zion
Season 4, Episode 8 Unrated
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Nucky's shipment from Florida arrives with some unexpected cargo. Eli is backed into a corner after Agent Knox uncovers some new dirt on the Thompsons. After talking things over with Nucky, Willie reconsiders his recent life choices. Chalky throws down the gauntlet toward Valentin Narcisse, upholding his leadership on the Northside.
Marriage and Hunting
Season 4, Episode 9 Unrated
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Nucky refuses to back Chalky in his conflict with Narcisse. Julia considers her options after Gillian makes her custody case in court. In Cicero, Van Alden stands up to Capone and comes clean to O'Banion. Rothstein looks to trade an insurance benefit for a cash infusion.
White Horse Pike
Season 4, Episode 10 Unrated
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Tipped off by Sally Wheet, Nucky enlists Eli and Agent Knox to check out extra cargo in Florida shipments. Margaret considers making a deal with Rothstein to improve her family's living conditions. Capone grows suspicious of Torrio; Nucky faces a dilemma; Eli makes peace with Willie.
Havre de Grace
Season 4, Episode 11 Unrated
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Nucky takes inventory after being warned there's a skunk in his cellar. On the lam after a close call, Chalky and Daughter take refuge outside Wilmington with Chalky's mentor from years ago, Oscar Boneau. Gillian weighs selling her mansion and starting a new life with Roy Phillips.
Farewell Daddy Blues
Season 4, Episode 12 Unrated
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Season Four Finale. Eli braces for the worst as Agent Knox sets in motion his plan to take down Nucky. Capone and Torrio reach an agreement in Cicero. Chalky looks to settle his scores. Richard Harrow steps forward to save Tommy, at Gillian's expense.