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.