Atlantic City, February 1924: Picking up 8 months after the events of Season 3, Nucky Thompson 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.

Originally broadcast on television by HBO in 2013. Based on the book: Boardwalk Empire : the birth, high times and corruption of Atlantic City / Nelson Johnson. "HBO Home Entertainment." Special features: Season 3: Revisited; The Onyx Club: a step back in time; Becoming Harrow; New Characters; Audio commentaries with cast and crew on select episodes.

Disc 1.New York Sour / written by Howard Korder ; directed by Tim Van Patten -- Resignation / written by Dennis Lehane and Howard Korder ; directed by Alik Sakharov -- Acres of diamonds / written by Terence Witner ; directed by Allen Coulter -- Disc 2. All in / written by David Matthews ; directed by Ed Bianchi -- Erlkönig / written by Howard Korder ; directed by Tim Van Patten -- The North Star / written by Eric Overmeyer and Howard Korder ; directed by Allen Coulter -- Disc 3. William Wilson / written by David Matthews & Terence Winter ; directed by Jeremy Podeswa -- The old ship of Zion / written by Cristine Chambers and Howard Korder ; directed by Tim Van Patten -- Marriage and hunting / written by David Matthews & Jennifer Ames & Steve Turner ; directed by Ed Bianchi -- Disc 4. White horse pike / written by Dave Flebotte ; directed by Jake Paltrow -- Havre de Grace / written by Howard Korder ; directed by Allen Coulter -- Farewell Daddy Blues / written by Terence Winter and Howard Korder ; directed by Tim Van Patten.