We see Peggy fully settled into her role at Cutler, Gleason & Chaough. She is now the one dealing with "the kids" and late-night crises, proving she has become the very person Don used to be.
The Zippo lighter Don accidentally swaps with the soldier in Hawaii becomes a recurring symbol of the life he stole and the guilt he carries. 4. A "Vintage" Soundtrack The Doorway (1)Mad Men : Season 6 Episode 1
By the end of the episode, we see Don "stepping through a door" back into his old habits, beginning an affair with his neighbor, Sylvia Rosen. 3. Iconic Moments & Trivia We see Peggy fully settled into her role