New Year's Eve 1922 and Nucky makes a resolution that does not sit well with Gyp Rosetti, a touchy gangster with a thirst for bootleg whiskey. Margaret, meanwhile, looks to build on the Thompson endowment at St. Theresa's Hospital.

Mixing business with pleasure in New York, Nucky bristles at the collection tactics of Gaston Means, an investigator with ties to Daugherty. Gyp makes a power play in Tabor Heights and a major liquor shipment takes a detour.

Nucky reluctantly joins Margaret to receive a high honour from the Church. Meanwhile, Gyp makes a deal with Nucky for a onetime liquor shipment, though the mobster's long-time intentions remain very much up in the air.

After tracking down a liquor thief, Nucky and Owen spend a long night hiding out from the Feds with the perp. In Chicago, Capone's feud with O'Banion heats up when one of his collectors gets roughed up on the South side.

After venting with Nucky about his liquor travails, Rothstein sends Gyp an unequivocal message. In Washington, Gaston Means sees opportunity in a Senate investigation of Harry Daugherty and the Justice Department.

After being detained in Washington, Nucky approaches Esther Randolph and later entertains an intriguing proposition from Gaston Means. In Atlantic City, Margaret copes with Teddy's demons and Owen investigates a fire.

On Easter Sunday, Eli looks to get back in Nucky's good graces at a Thompson family reunion. In New York, after dinner and prayers, Gyp heads downtown in search of a blessing from Joe Masseria.

Working off his debt to O'Banion, Van Alden attends a meeting with Capone and Torrio. Nucky pays an unscheduled visit to Andrew Mellon, offering the Treasury Secretary a recommendation and a business proposal.

Reeling from Gyp's most recent attack, Nucky vows to eliminate his nemesis through a coalition of familiar partners. In Washington, the arrest of a high-profile bootlegger puts Daugherty and Jess Smith in the hot seat.

Nucky reaches out to Gaston Means to keep Jess Smith quiet in Washington, and enlists Owen to neutralise Gyp's alliance with Joe Masseria in New York. Margaret considers alternate futures, at the hospital and at home.

Gyp makes his move in Atlantic City, forcing Nucky and Eddie to seek refuge with Chalky. With the Artemis Club overrun by Rosetti thugs, Gillian contemplates a business future that includes an unwelcome partner.

Season finale. Desperate to weaken Gyp's union with Masseria & reclaim Atlantic City, Nucky cedes control of one of his prized assets to Rothstein. Margaret decides to end one relationship & considers resuming another.