Don has been loitering outside the Rosen's apartment. Sylvia sees the signs that he has been doing so and implores him to stop, although Don is desperate to continue the liaison with her. At the office, Ken has been ...
Don and Megan take a trip to Hawaii for the holidays, Sally's friend visits the Francis family, a comedian torpedoes Peggy's Super Bowl ad campaign, and Roger gets some bad news about his mother.
Don strikes up a friendship with the surgeon in his building, Peggy tries to save her campaign, Roger makes a scene at his mother's funeral, and Betty goes to Manhattan to find Sally's friend.
While Don continues his affair with Sylvia, Pete's latest infidelity threatens his marriage. Meanwhile, Peggy's icy relationship with her new staff continues, but she also gets an unlikely tip on a potential new client.
Don works in secret on a Heinz ketchup campaign while Megan gets a love scene on the set of her soap opera. Meanwhile, Harry makes his power play while Joan has more trouble with the secretaries.
Set among the events surrounding Martin Luther King's assassination, Peggy tries to get a new apartment, Ginsberg is set up on a date, and Don has a revelation during his weekend with the kids.
As the firm prepares to go public, Don and Pete's actions cause them to lose two huge clients. However, Roger uses a new connection to put them in position to gain their biggest client ever.
Things quickly become awkward after the two firms merge, Don asserts his dominance over Sylvia, Pete has to deal with his ailing mother, and Bob Benson helps out a sick Joan.
Don has been loitering outside the Rosen's apartment. Sylvia sees the signs that he has been doing so and implores him to stop, although Don is desperate to continue the liaison with her. At the office, Ken has been taking the brunt of the issues with the Chevy account, he who relays to the partners that GM has provided a three year time-line with key deadlines, the next to take place the upcoming Monday in 72 hours. It's bad timing especially for the former CGC partners and staff as Frank Gleason has just passed away, meaning that some have to make a presence at the ...