Episode Title: “Shut the Door. Have a Seat”
Episode Description: With another sale on the horizon, Sterling, Cooper, and Draper convince Lane Pryce to fire them and then join them as they start up a new advertising firm. At home, Betty follows through with her plans to divorce Don.

Episode Title: “The Grown-Ups”
Episode Description: On the weekend of the John F. Kennedy assassination, Pete finds out that he lost the promotion to Cosgrove, Roger Sterling’s daughter’s wedding goes off as planned, and Betty musters up the courage to respond to Don’s confessions.

Episode Title: “The Gypsy and the Hobo”
Episode Description: An old flame and potential client reenters Roger Sterling’s life, Joan’s husband searches a new job, and Don finally comes clean to Betty about his true identity.

Episode Title: “The Color Blue”
Episode Description: 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, and Betty stumbles onto her husband’s secrets.

Episode Title: “Wee Small Hours”
Episode Description: Betty tries to meet with Henry Francis again, while Don steps up his pursuit of his daughter’s former teacher. At the office, Don disappoints Conrad Hilton and is forced by a client to fire Salvatore over an unwelcome advance.

Episode Title: “Souvenir”
Episode Description: Don and Betty renew their love affair while on a business trip to Rome, while Peter has a bout of infidelity with an au pair in his building while his wife is away.