Given how much "Mad Men" creator Matthew Weiner, who directed Sunday's two-hour premiere, hates spoilers, the task of reviewing "The Doorway" (8 p.m. Sunday, AMC; 4 out of 4 stars) seems akin to walking on some late 1960s eggshells. Fortunately, these eggshells smell like hibiscus blossoms and marijuana.

Here's what I can tell you: Don and Megan's trip to Hawaii, which we already knew was happening, is a hell of a lot more fun than that time he left her behind at a HoJo in upstate New York. It's a little slice of paradise before we return to the reality of SCDP, which, come to think of it, is now missing its P.

Things on the mainland are not even remotely how we left them. We're knocking on the door of the 1970s and our heroes and heroines are either clinging stridently to the past or leaping enthusiastically into the future. How can you tell who's who? The hairstyles. Oh dear lord, the hairstyles. Michael Ginsberg, what hath happened to your head?

Unlike Season 5's two-hour premiere, which easily could have been edited to half its length, every minute of Sunday's episode feels necessary, checking in with all our favorite players and dancing with Weiner's favorite theme, death. Some, like Roger, are being forced down roads they don't want to take. Some, like Peggy, find that all roads lead to the same destination. And others, like Don, discover that no matter what, the past always comes up the road to find them.

And yes, that burning question from the final moments of the Season 5 finale will be answered, but I value my life FAR too much to tell you how.

@redeyedana dmoran@tribune.com

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