Top adman Don Draper works at one of New York's most prestigious ad agencies in the 1960s and '70s, but his personal life sometimes gets in the way of his performance at the office.
Don heads out to California to try to rescue his marriage to Megan, while Roger receives a phone call from his daughter. Peggy clashes with her new boss.
Peggy receives a bouquet of flowers at the office, Pete navigates the politics of new business and Joan is put in an incredibly awkward situation.
Don takes an impromptu trip, Betty has lunch with a friend, Harry lobbies for a cause, and the partners consider a questionable asset.
Don contacts an old friend, while Roger deals with problems at home. Meanwhile, Pete underestimates Peggy.
Don has a visitor from his past, Stan embarrasses one of his superiors, Peggy helps Ginsberg with a problem and Harry finds that he has a new ally at the agency.
Peggy researches for a pitch, while Joan is eager to spend time with a friend. Pete receives an invitation to an exclusive club.
Don is troubled by a letter and Peggy considers a new future based on a risky venture. Meanwhile, Pete and Cutler clash and Roger receives a phone call.
Don attempts to track down a friend, Peggy is set up by an unlikely person and Joan tries to solve a problem with an account.
Don receives unwanted advice from Roger, Meanwhile, Peggy and Stan disagree over an account's personnel and Harry requests Don's blessing.
Roger palms off a project on Don, Joan goes on a business trip and Peggy and Pete struggle to agree.
Roger needs Joan's help to fix a clerical error, Don comes up with a big idea, and Peggy has difficulties casting a commercial.
Don is rewarded for his work, Joan clashes with a co-worker over an account, and Roger avoids making a big decision.
Don has difficulty sleeping, while Pete is caught out by a friend and Henry organises a family reunion.
Last-ever episode of the drama. Roger makes a decision about his personal life, and Peggy pleads with Don to return home and to his job.