S1E3 · Marriage of Figaro

Complete story — includes the ending

Don is recognized by a man on the train who refers to him as Dick Whitman; Don acknowledges the man and makes non-committal plans about getting together. Pete returns from his honeymoon, excited about his new marriage but conflicted about his past encounter with Peggy, who reassures him that their dalliance never occurred. Don meets with Rachel at her family's department store, during which he kisses her impulsively and admits that he is married. In response, Rachel tells Don that she wants someone else put in charge of her account at Sterling Cooper. Don and Betty host a birthday party for their daughter, Sally; Betty invites her neighbor, Helen Bishop, who is treated like an outcast due to her failed marriage. Don abruptly leaves the party and returns later that night with a Golden Retriever for Sally, recalling Rachel's earlier conversation about how a dog can be everything to a little girl.