Nucky and Owen seek cooperation with the IRA in Belfast; Jimmy makes a deal with George Remus before the next Jack Dempsey bout; Margaret worries about Emily's deteriorating health; Dunn Purnsley organizes a strike at the Ritz; the feud between Waxey Gordon and Manny Horvitz heats up in Philadelphia; Halloran is questioned about Nucky's past by Randolph and Clifford Lathrop.