Nucky mixes business with pleasure in New York; Margaret's altruism is met with resistance; Gyp tries to establish a strategic foothold; Chalky and his daughter disagree about her future, Eli gets a new boss.
Hoping for a bailout from her American grandmother, Mary makes sure Downton puts on a bigger show than ever before. Mrs Hughes gets worrisome news. Thomas disapproves of O'Brien's attempts to boost Alfred's progress.