This is how Smokescreen, Pinkie Pie, Applejack, Fluttershy, and Rarity in the Shadowzone goes in Shadowzone.
[The scene is now grey and dull. Pinkie, Applejack, Fluttershy, Rarity and Smokescreen pick themselves up]
Smokescreen: Are you guys OK?
Pinkie Pie: Yeah.
Applejack: I'm fine.
Fluttershy: Me too.
Rarity: Me three.
[The Autobots pick themselves up]
Bulkhead: What just happened?
Ratchet: I can't be certain. But if two Groundbridges sent to the same coordinates crossed streams, the feedback could have triggered a system overload.
Smokescreen: Could? Hello! More like totally did!
Pinkie Pie: Yeah.
Applejack: It's like they can't even hear you.
Bulkhead: At least Smokescreen and the ponies made it through, right?
Pinkie Pie: What's he talking about?
Fluttershy: What the heck?
Rarity: Bulkhead! We're right here!
Optimus Prime: Arcee, did Smokescreen and the other ponies make it safely back to base?
Arcee: [over comm] Negative. You don't see them?
Ratchet: No sign.
Applejack: What? No sign? OK. Seriously, Bulk!
[Bulkhead walks right through her]
Smokescreen: He went right through you. We're not alive.
Pinkie Pie: I don't wanna be a ghost!
Applejack: Wait. How can we touch each other?
Fluttershy: I don't know.
Rarity: Me neither.
Optimus Prime: Ratchet, could they have been transported onto the Nemesis instead?
Ratchet: Not likely. If Starscream didn't arrive at our base, the most likely explanation is a dislocation. They may have simply been bridged to an unintended destination.
[Smokescreen suddenly realizes something]
Smokescreen: Another place but in the same place.
Pinkie Pie: What?
Fluttershy: What are you talking about?
Rarity: How can you explain that?
Smokescreen: We must be in some alternate reality. A shadowzone.
Pinkie Pie: What?!
Fluttershy: Is this true?
Rarity: You'd better believe it is.
Optimus Prime: Look. Skyquake's tomb is empty.
Bulkhead: How did we miss Skyquake rising and shining?
Ratchet: It would seem Starscream got what he came for.
Optimus Prime: Another matter for another time. Right now, our only priority is locating Smokescreen, Pinkie Pie, Applejack, Fluttershy, and Rarity. Arcee, bridge us back to base.
[A hand comes out and its owner is revealed to be a Terrorcon Skyquake. Smokescreen and the ponies gasp in horror]
Pinkie Pie: Oh, no, no, no, no, no. Not good, not good, not good.
Rarity: Of all the worst things that could happen, this is the... worst... possible... thing!
Applejack: We have to warn them.
Fluttershy: I agree.
[The Terrorcon Skyquake goes to snatch Bulkhead but his hand goes straight through]
Applejack: Awesome. It can't touch them either.
[The Terrorcon Skyquake turns to them and walks towards them]
Smokescreen: Uh, girls, if that thing can't touch the bots.
Pinkie Pie: Just like we can't.
Applejack: We're trapped in the Shadowzone with a Decepticon zombie.
Fluttershy: If we aren't ghost now, we will be soon!
[The Terrorcon goes to for a punch but Smokescreen catches it in his servo]
Smokescreen: Girls, run! I'll hold him off!
[Pinkie Pie, Applejack, Fluttershy, and Rarity run off as Smokescreen holds off the Terrorcon Skyquake]
Smokescreen: I liked you guys better when you were alive!
[Smokescreen punches the Terrorcon Skyquake and runs off. The Terrorcon Skyquake slowly follows]
[Pinkie Pie, Applejack, Fluttershy, and Rarity hide behind a rock. Smokescreen arrives and stops to catch his breath]