Nucky and Owen plan a move against New York, pursuing Masseria first. A middle-man who could expose both Nucky and the Attorney General is targeted. Nelson's new sales job gets him into trouble with Capone. Richard and Julia's relationship takes a step forward. After being rejected by Rothstein, Luciano, and Lansky go into business with Masseria. Margaret reveals to Owen that she is pregnant with his baby, but before they can run away together he is killed by Masseria's men.