'Pretty Little Liars' Spoilers: 13 Things To Know About "Grave New World"

The annual Pretty Little Liars Halloween special is finally upon us! Well, it will be. In a few hours. Until then, fans and viewers can enjoy a PLL marathon event all day on ABC Family.

During the commercials, fans can speculate and theorize on what we fan expect when the episode finally airs. Rumor has it fans will finally know if Alison is still alive by tonight but there are a million other questions that need to be answered. Is Ezra really A? What will happen to Ezria, Spoby, and Haleb? How and why will the girls, and Caleb, end up in Ravenswood? Why is that town so creepy?

E! Online has the 13 things you need to know about tonight's Halloween episode of Pretty Little Liars: "Grave New World."

1. ForeverHale_: Is the Halloween episode shocking? Shocking is most definitely an understatement. Executive producer Marlene King promises it'll be a night you'll never forget: "You can't miss it. You can't not tune in. It's by far the best Halloween episode we've ever done, but it's also the most unforgettable episode of Pretty Little Liars that you could imagine. It's sort of what we've all been waiting for. There's something that happens in this episode that we've all been waiting to see." Getting excited yet?!

2. Inadazeamanda: Is Ezra trying to help them or hurt them?
Both. The liars will be chased around for the majority of the episode by our masked A, but at the most convenient time Ezra (Ian Harding) will appear to save the day. Or so it seems…

3. SpencerTheHBIC: Is it a super episode for Spencer?
Considering Spencer is the glue that keeps this group together, we'd definitely describe her as super, but there is one scene in particular where fans will see just how much of a bad-ass Spencer really is. Let's just say there's a Spencer-"A" showdown and she most definitely can hold her own against a murderous pyscho…

ABC Family "Pretty Little Liars"

4. SleepntheHrding: We know Ezra is shady, but are there any sweet Ezria moments when he's actually being Ezra and not EzrA?
According to King, we're going to be getting a little bit of everything in this Halloween episode. "You're gonna get some Ali, you're gonna get some Ezra, you're gonna get some Ezria," The EP promises. "You're going to get a lot of fantastic costumes, and wardrobe, and creepy, and scary, and story. The story moves forward too, so it's not just like scary creepy, it's like big PLL story."

5. Iansgoose: What's one thing Lucy can say to describe Arias relationship with Ezra this season?
Lucy Hale tells us there will be a "change in dynamics" between Ezra and Aria in season 4B. Stay tuned for more Ezria scoop following the Halloween episode…

6. TeamDamon7: Is more than one person wearing the soldier costume that Ezra is wearing?
Ooh! Someone knows the pretty little tricks! Like we've seen in the past with our mysterious Red Coat, there is more than one soldier costume running around the Ravenswood cemetery bash. Pay attention to his face because you'll be seeing him on your TV screens quite a bit over the next few months!

7. Vaish96x: Is Alison alive?
We can't tell you that! But we can tell you what executive producer Oliver Goldstick told us: "The Halloween episode is very much about the girls pursuing Alison in this town, because Alison has a connection to this place." He teases, "It's really cool, by the end of the Halloween episode you'll be saying, 'Oh. My. God. Alison DiLaurentis…'"

?8. Justinebenard: Will Ezra hurt one of the girls since he is ''A''?
We cannot confirm nor deny that Ezra is officially "A," but we can reveal that one of the girls does get pretty badly hurt in the episode. Hint: It's not Emily...

9. Emmapants: Is there ever going to be a real fallout from that time Spencer thought Toby was evil & dead and it drove her crazy?
Well, now it's Spencer's turn. Prepare yourselves for the traditional ups and downs of Spoby! Troian Bellario tells us that Spencer is going to be facing a stressful upcoming season and Toby (Keegan Allen) is going to support her as much as she'll let him. "Spoby just fights all the time," the actress says. "But that's Spoby—they're super passionate right? They're either kissing or fighting." Classic steamy Spoby!

10. Pietersely: Does Sasha think Ali can become friends again with the girls, in case she's alive?
Once again we can't tell you if Ali is alive, but we can tell you that Sasha Pierterse is eager for fans to see more of her when the series returns this winter. "You find out if I'm alive or dead in the Halloween special, and it's just a very fun, spooky, spooky episode," she reveals. "The second half of the fourth season is honestly my favorite part of our whole entire show that we've ever done. I think we've just kind of stepped up our game a lot, and I'm just very excited for the viewers to see it."

11. CKaderabek: Do they find out who A really is?
No, but they do discover the answer to a mystery that we've all been wondering about for the past four seasons.

Will we finally get answers tonight?? It sounds like we may but something tells me a thousand new questions will pop up afterwards. Personally, I'm hoping Ezra really is evil. It's so much more interesting.

What are your hopes for the Halloween episode of Pretty Little Liars? It's a two hour special event when "Grave New World" airs at 8/9c on ABC Family. Don't forget to tune in to Ravenswood airing right after it at 9/8c