Who is Don Draper?

Pete's return from his honeymoon stirs up conflicted emotions about his bachelor-party dalliance with Peggy; Don and Rachel's business relationship shifts; Betty sets tongues wagging when she invites the neighborhood divorcée to her daughter's birthday party.

Don wins a prestigious award and gets his face splashed on a prominent industry periodical, which triggers some fallout from his past; Ken gets a short story published in a national monthly magazine, inspiring jealousy among his colleagues.

Peggy offers superb suggestions during a focus-group session, and her ideas are so well received that her future at the agency looks much brighter; Don asks Rachel's advice about an ad campaign for Israeli tourism.

Don's mysterious past comes back to haunt him; Peggy celebrates her new work success, but not all of her colleagues and co-workers are pleased or impressed; Salvatore's relationship with a client is questioned.

Peggy is assigned a difficult project; Don seizes the opportunity provided by Roger's latest work woes; a frustrated Pete develops more problems at home and in the office; Betty seeks new relief for her mounting frustrations.

The Sterling Cooper staff pulls an all-nighter watching Nixon-Kennedy election returns; an ambitious Pete directly challenges Don.

Peggy's colleagues are irked when she's given a new job opportunity; Don's work responsibilities get in the way of his home life; Betty uncovers a surprising secret.

An old friend and Don renew acquaintances; Pete's personal problems impact a major account; Joan introduces her fiancé around the office.

In the third-season opener, Pete and Ken are among those affected by the corporate changes at the firm. Meanwhile, Sal accompanies Don on a business trip to Baltimore, where both men succumb to the powers of persuasive seduction.

Betty becomes involved in local politics; a troubling incident leads Don to begin thinking about his future; and Peggy is on the receiving end of an exquisite gift.

Sterling Cooper celebrates a company milestone; Peggy competes with Paul for an account.

Sterling Cooper welcomes back a prodigal client; Betty and the children take a trip; Joan and Greg make plans for their future.

In the Season 4 opener, Don's reluctance to talk about himself jettisons a prestigious trade-paper interview that the company was hoping would be a boon to business. Meanwhile, the "wholesome" manufacturer of two-piece swimsuits wants to hire the firm but doesn't want a sexy ad campaign; Pete and Peggy stage a stunt in an effort to secure more money from a meat-company client; and Roger plays Cupid for Don.

Don plans a jaunt to Acapulco, while back at the office, Lane and Joan get into a serious disagreement.

A rapidly approaching deadline causes consternation and throws things into a tizzy at the agency.

Betty is a bit unsettled when a surprise visitor stops at the Francis home.

In the Season 4 finale, a surprising opportunity rears its head for both Don and Peggy, leaving them with life-altering decisions to make.

Don's competitive nature comes to the fore; Roger pursues some new clients; Sally is met with a challenge.

Season 5 concludes with opportunities abounding for everyone at the agency, while Pete encounters an interesting stranger on a train.

Don has a difference of opinion with a client, while Peggy has problems motivating the staff.

Don is disrupted by a surprise visitor; Peggy looks for inspiration.

In the series 6 finale, Don has a problem.

Don gets a visitor from his past; Stan embarrasses a superior; Peggy helps Ginsberg with a problem; Harry discovers a new ally at the agency.

Don has trouble sleeping; Pete is blindsided by a friend; Henry arranges a family reunion.

The stories of Don Draper, his family and his coworkers come to an end in the series finale.