In Cuba, Nucky presses a U.S. senator on Prohibition's repeal and eyes a business deal with a rum magnate. Margaret witnesses a casualty of the Great Depression. Luciano makes a bold career move. Chalky catches a break to get out of a bad situation. In a flashback to 1884, a young Nucky makes an impression on the Commodore.

Nucky pays a visit to Johnny Torrio. Eli and Van Alden must recoup money lost during a federal raid.

Chalky heads in a new direction. Margaret finds herself in a quandary.

Nucky and Margaret find common ground in Atlantic City. Luciano encounters an old adversary.

Chalky returns to Atlantic City. Nucky arranges a meeting with Maranzano. Eli reunites with June.

Federal agents enlist the help of Eli and Van Alden to take down the Capone organization.

Nucky tries to hold onto his assets in Atlantic City. Willie and Eli become involved in Nucky's war.

Nucky plans to relocate to Manhattan. Margaret impresses Nucky and a grain company stockholder.