Speaking of nostalgia, though, the other "breaking into the city" storyline felt very "Season 1"-esque too, but in a good way -- it's been long enough since Agents did the "X-Files mystery turns out to be random Marvel stuff" routine that seeing Coulson, etc, picking around the "haunted" ruins was a nice throwback. Also, the still-unresolved tension between Fitz and Simmons remains a solid source of drama and the "trap" of the underground-city (it doesn't kill you, it turns you into a rage-monster) was a novel reveal.
The standoff with Ward/HYDRA was, honestly, the least interesting thing going on this week -- yeah, it's necessary, but we already know The Bus and most of its occupants are probably going to "make it." On the other hand it was fun to finally see two Koenigs on-screen together.
- Coulson and May serving as stand-ins for Skye's parents in her nightmare about being abandoned was a strange detail, given that that particular fan-theory has been pretty well debunked at this point. (Yes, I know it's surrogacy-symbolism.)
- That said, the music box in Skye's nightmare is playing "A Bicycle Built For Two," aka "Daisy, Daisy." Many fans have speculated for a while that Skye's Inhuman identity will turn out to be Daisy Johnson, aka "Quake."
- Not sure where they're going with Agent 33 yet, but it was fun to see her used to deliver a Skye vs May fight that didn't need to end in a curb-stomp.
- What's the "other thing" Bobbi tells Mack she's not looking to talk to Hunter about yet, even though they're fooling around again? No idea -- maybe it involves Hawkeye, her main love interest from the comics. He feels like the Avenger most likely to turn up on Agents anyway, and it's been rumored for a while now that Hawkeye and Black Widow won't be a couple by the time Age of Ultron rolls around.
- Assuming that what's waiting inside the Inhuman (Kree?) city that may or may not be Attilan is The Terrigen Mist, two things seem like givens: One of the bad guys (Whitehall?) having an "Opening the Ark" moment... and someone in the cast other than Skye and Raina turning out to have been an Inhuman the whole time. So who's it going to be?
- Also: Assuming that either next week or at some point when the season continues The Terrigen Mists get unleashed and suddenly the world is crawling with newly-empowered Inhumans... is that going to be Agents' new status quo? S.H.I.E.L.D. and HYDRA in a recruitment arms race? Because that could be fun.
Bottom Line: Agents' second-season second-wind is still going strong.
Recommendation: Imperfect and slow to start, but once it gets going it's working a good angle.
"What They Become" promises to bring things to a head both with S.H.I.E.L.D. vs HYDRA and the Inhumans setup -- but try not to look too surprised when they all-but inevitably cut to "to be continued" right before the reveal of what Skye, Raina, etc "become."