The season's premiere finds Salvatore and Don away on business. Back in the office, Pete Campbell and Ken Cosgrove grapple with the unsettling shifts occurring at Sterling Cooper and consider their potential consequences.

Peggy’s father-in-law calls upon his daughter’s family. Meanwhile, Peggy dedicates herself to a demanding campaign, as her firm grapples with a peculiar request from a client. And in another sphere, Roger is occupied with wedding preparatio…

To combat the encroaching tedium of a required overtime shift, the writers seek distraction. Roger initiates a gathering, while Joan and Greg host their own. Meanwhile, Sally finds herself in a disagreement with her grandfather.

Don encountered his father-in-law unexpectedly. Elsewhere, Peggy was seeking a new housemate. And the firm received news that a wealthy new client was eager to begin their partnership.

Don and Betty find themselves increasingly troubled by Sally’s actions. Betty experiences a dream of startling clarity, one that leaves her subtly altered. Meanwhile, Pete attempts to introduce a novel approach to his business dealings.

A visitor arrives unexpectedly at Sterling Cooper. Sally is unsettled, troubled by something – or someone. And Joan learns news that strikes her with a jolt of surprise.

Betty ventured into the realm of local politics, testing the waters of civic engagement. Don found himself compelled to contemplate the unfolding years ahead. And Peggy was presented with a gift of considerable elegance and worth.

Don decided to bring Betty along on the company business trip. Meanwhile, Pete offered assistance to a neighbor in their apartment building.

Don and Sal face difficulties in fulfilling their clients' requests. Elsewhere, Betty organizes a fundraising event.

A sense of triumph filled the firm as they reached a significant achievement. Meanwhile, Peggy and Paul found themselves vying for the same coveted account.

The past drifted back with unexpected grace: an old client reappeared. Meanwhile, Betty and her children embarked on a journey, seeking respite and new experiences. Elsewhere, Joan and Greg began to map out the contours of their shared futu…

Peggy consistently demonstrates poor judgment when it comes to men. Meanwhile, Pete faces a pivotal career choice, and a particular applicant leaves a lasting impact on Don.

Don has a significant meeting planned with Connie, a discussion poised to shape the course of their relationship. Meanwhile, Betty will receive some insightful counsel, while Pete prepares for an important, formal discussion with his client…