Investigating the heist now linked to Hans Schroeder, straight-and-narrow Agent Nelson van Alden pays a visit to Nucky; a concerned Nucky sends his brother, Sheriff Elias Thompson, to the hospital to sow the seeds of doubt in the widow Schroeder's mind, then lets Mickey Ward know he's being replaced by Chalky White in the bootleg-production business.

In Chicago, Jimmy bonds with one of Johnny Torrio's prostitutes, Pearl, and finds himself increasingly at odds with the hot-headed Al Capone. Back in Atlantic City, Nucky looks to leverage his relationships with ambitious U.S. Senator Walter Edge as well as Jersey City Mayor Frank Hague. Margaret impresses at Nucky's birthday party, while Lucy tries to protect her territory.