Boardwalk Empire - Season 4

First aired: 9/8/2013 12 episodes

Atlantic City, 1924: Nucky is laying low at the end of the Boardwalk after barely surviving an overthrow by gangster Gyp Rosetti. But the calm will be short-lived, as Nucky faces new challenges, including a clash with a violent Harlem power broker, a battle with his brother Eli over Eli's college-age son, and the irresistible lure of lucrative—and perilous—opportunities in Florida.

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Episodes

1. New York Sour

Aired: 9/8/2013

Following his battle with Gyp Rosetti, Nucky makes a peace offering to Joe Masseria while working the odds with Arnold Rothstein. While Chalky is busy running the Onyx Club on the Boardwalk, the impulsive Dunn Purnsley clashes with a booking agent. Fresh-faced Federal Agent Warren Knox arrives in Atlantic City to learn the ropes from Agent Sawicki. Gillian seeks custody of her grandson, 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.

2. Resignation

Aired: 9/15/2013

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. 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, acting director of the 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.

3. Acres of Diamonds

Aired: 9/22/2013

Nucky has reservations about investing in a Tampa land deal engineered by transplanted bootlegger Bill McCoy. While there, he meets speakeasy owner Sally Wheet. Valentin Narcisse books a sexy jazz singer, Daughter Maitland, to perform at the Onyx, and gauges Dunn Purnsley’s allegiance to Chalky. Willie, Eli’s son, turns to Mickey Doyle and his bootleg warehouse to elevate his social standing at college. Gillian agrees to pose as Roy Phillips’ wife to impress a possible partner. Harrow tries to bury his past, though not before taking care of some unfinished business with Emma.

4. All In

Aired: 9/29/2013

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 his college roommate, Clayton, carry a practical joke too far.

5. Erlkönig

Aired: 10/6/2013

Nucky heads to Philadelphia; Agent Knox detains Eddie Kessler to obtain information about Nucky's organization; Gillian tries to score a fix; Van Alden is recruited by the Capones.

6. The North Star

Aired: 10/13/2013

Nucky heads to Tampa to work out details of his land deal with Bill McCoy; Richard Harrow returns to Atlantic City; Agent Knox tries to gain Eli's trust; Chalky takes out his frustrations on Daughter Maitland.

7. William Wilson

Aired: 10/20/2013

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.

8. The Old Ship of Zion

Aired: 10/27/2013

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.

9. Marriage and Hunting

Aired: 11/3/2013

Nucky refuses to back Chalky in a conflict; Gillian makes her custody case in court; Van Alden stands up to Capone and comes clean to O'Banion; Rothstein tries to make a trade.

10. White Horse Pike

Aired: 11/10/2013

Nucky enlists Eli and Agent Knox to check the cargo in the Florida shipments; Margaret considers making a deal with Rothstein; Capone grows suspicious of Torrio; Nucky faces a dilemma.

11. Havre de Grace

Aired: 11/17/2013

Nucky takes inventory after being warned of a skunk in his cellar. On the lam following a close call, Chalky and Daughter take refuge outside Wilmington with Oscar Boneau, his mentor from years ago. Gillian considers selling her mansion and starting a new life with Roy Phillips.

12. Farewell Daddy Blues

Aired: 11/24/2013

Eli braces for the worst as Agent Knox launches his plan to bring Nucky down. Capone and Torrio reach an agreement in Cicero. Chalky looks to settle scores. Richard steps forward to save Tommy, at Gillian’s expense