A wide-eyed young scion of a conservative family embarks on a mission to infiltrate the wealthy neighboring clan dominated by ruthless railroad tycoon George Russell, his rakish son, Larry, and his ambitious wife, Bertha.
Cast: Christine Baranski, Cynthia Nixon, Taissa Farmiga, Jeanne Tripplehorn, Donna Murphy, Katie Finneran, Linda Emond, Morgan Spector, Audra McDonald, Michael Cerveris, Bill Irwin, Louisa Jacobson, Amy Forsyth, Blake Ritson, Debra Monk, Harry Richardson, Sullivan Jones, Michel Gill
The van Rhijn staff question their employment. Jack's patent is approved. Peggy wins for local schools, ponders leaving NY Globe. Marian reveals feelings to Dashiell. Bertha and Mrs. Astor make final opera war maneuvers.
New York celebrates a historic event and Bertha reconsiders her loyalty, While Marian is doubting about her future.
As George heads to Pittsburgh to deal with the potential strike, Bertha learns that the Duke will return for the Metropolitan Opera's opening night. While the staff chip in to help Jack, Bannister tries to retrieve an incriminating letter from the Russell house. Ada and Luke return from their honeymoon and Marian receives an invitation from Dashiell.
While Ada questions whether to move forward without her sister's support, Agnes faces the prospect of living alone. In Newport, Bertha puts the finishing touches on the event of the season as Mrs. Winterton plots her revenge. After experiencing the best of the Tuskegee Institute, Peggy and Mr. Fortune witness the dangers of the South firsthand.
After receiving discouraging news about the Met, Bertha deals with rumors that are swirling about Larry. Fearing her sister's disapproval, Ada asks Marian to cover for her as she continues to see Mr. Forte. Later, Bertha vies for position with the visiting Duke of Buckingham, and, in Tuskegee, Peggy navigates a tense dinner with Mr. Fortune and Booker T. Washington.
Opera war escalates. Surprise guest at Bertha's fundraiser. Agnes supports Academy preservation. Peggy offers to cover Tuskegee story. Ada hosts luncheon for Mr. Forte. George woos Henderson. Watson mulls offer.
Oscar's verdict; Clay meets Mr. Henderson. Agnes scolds Ada. Mrs. Fane arranges a match for Marian. Larry's new commission, and Peggy's return is bittersweet.
Agnes shares news of her nephew Dashiell's imminent arrival in New York; Bertha decides to back the new Metropolitan Opera House.