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's father pays a visit; the Drapers dine with the stuffy new British boss (Jared Harris) and his snobby wife; the firm contemplates whether to accede to an unusual request from a client; Roger takes charge of arranging a wedding; and Peggy's personal involvement in a campaign leaves her greatly affected.
A mandatory overtime session leaves the writers trying to stave off late-night boredom; Roger throws a party, and Joan and Greg host one of their own; and Sally and Grandpa have a run-in.
Don crosses paths with his father-in-law (Ryan Cutrona); Peggy searches for a new roommate; and a new client with money to throw around is very excited about doing business with the firm.
Concern over Sally's behavior causes Don and Betty to act; opportunistic Pete tries to work a new angle into his business dealings; and an odd dream has a strange effect on Betty.
A surprise visitor shows up at Sterling Cooper; Sally gets spooked by something (or someone); and Joan is the recipient of some surprising news.
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.
Don decides to include Betty on a company business trip; Pete lends a hand to a neighbor in his apartment building.
Client satisfaction proves to be difficult for both Don and Sal; Betty decides to host a fund-raiser.
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.
A candidate makes an impression on Don; Peggy's taste in men proves questionable; and Pete faces a major decision about his career.
In the third-season finale, Don has a pivotal meeting with Connie (Chelcie Ross); Betty is the beneficiary of some interesting advice; and Pete has a serious sit-down with some clients.
