The Canadian promo for the Pretty Little Liars Season 4 finale holds nothing back, giving us glimpses into just how many characters will make an appearance in the season-ender and kind of implying that one of them will be revealed as “A.” Not that we really believe that will happen. What else does the new promo tell us?

“I want to hug you and slap you at the same time,” Hanna tells Alison at the start of the 30-second vid. We know how you feel, Han. But, at least the Liars will finally have a chance to sit down and get some answers out of Ali.

Meanwhile, Spencer’s parents already know their daughter flew the coop: “I thought this was about finding Spencer, not accusing her of something,” Mr. Hastings says. One point for Spencer’s dad!

Elsewhere in the promo, Ali tells the Liars that she’s “ready to tell you guys everything.” (Finally.) First, though, she apologizes to Aria. “For what?” Aria asks we don’t get the answer, but this must have something to do with Ezra, right? Did Alison send him to worm his way into Aria’s life?

But, most importantly, who is “A”? The promo gives us a lot of possibilities, showing us shots of many a character who will appear in the ep: Ian, Officer Holbrook, Mrs. DiLaurentis, Melissa, Ezra, Mona, and Mr. Hastings are all in there. And one of them might be the masked figure dressed in black who bursts through a “The Mockingbird Sings” window and into the Liars’ powwow.  “Ali, run!” Emily yells, as the Liars try to protect their friend.

We see the Liars on the roof. Hanna has a gun and is pointing it at the masked figure. “Take off your mask,” Spencer demands. Hanna specifies “Now!” and the mystery character reaches to obey. Eek! Why isn’t it Tuesday already?!

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Catch the next episode of Pretty Little Liars on Tuesday, March 18, 2014 at 8 p.m. ET on ABC Family.

Kayti Burt is a contributing writer for Wetpaint Entertainment with a penchant for all things pop culture. Follow her on Twitter and Google+!