As Sterling Cooper prepares for its 40th anniversary party, the bosses in London drop a bombshell to Lane; Miss Farrell's troubled brother pays a visit to her and Don; Betty stumbles onto her husband's secrets.
Director:
Michael Uppendahl
Cast:
Jon Hamm
John Slattery
Rich Sommer
Bryan Batt
Vincent Kartheiser
Christina Hendricks
January Jones
Elisabeth Moss
Rosemarie DeWitt
Maggie Siff
Aaron Staton
Michael Gladis
Robert Morse
Darby Stanchfield
Anne Dudek
Jared Harris
Kiernan Shipka
Alison Brie
Embeth Davidtz
Christopher Stanley
Abigail Spencer
Charles Shaughnessy
Marshall Allman
Peyton List
Crista Flanagan
Laura Regan
Ryan Cartwright
Mary Anne McGarry
Hal Landon Jr.
Deborah Lacey
Alexa Alemanni
Jared Gilmore
Neil Dickson
Anthony Burch