"A" is back on tonight's Pretty Little Liars (Season 5, Episode 6, “Run, Ali, Run”), and we couldn't be happier about it. Things just haven't been the same without the mysterious hooded foe fighting the Liars.

So, why are we so excited to see "A" back in action this week? Beyond the obvious — "A" has always been a big part of the show, so it feels wrong when they're not there causing trouble — here are three reasons we think "A"'s return has the potential to really shake things up this season in particular.


How does Ali react? This is the season of Alison (Sasha Pieterse), and so far she's a mystery. Does she really want to repent? What isn't she telling the Liars? What's her end goal? We have a lot of questions, and we have a feeling that adding "A" into the mix will start to peel back some of her layers. How she reacts under the pressure of "A" will hopefully tell us a lot about where she really stands, what she really knows, and what she wants out of her return to Rosewood.

Mona and her army. Like Ali, Mona (Janel Parrish) and her army — plus Jenna (Tammin Sursok) — are a big question mark right now. "A"'s return will hopefully help us suss out if this group is working with "A", or if they really do have a separate agenda. Will "A" target Mona, Jenna, or members of Mona's army? The answer to that question could tell us a lot.

What does Ezra do? Aria (Lucy Hale) seems to have forgiven Ezra (Ian Harding) for his stalking ways, but we haven't. We're not sure he can ever truly be redeemed in our eyes, but if he puts what he's learned to good use helping the Liars, that would go a long way to make us trust him again, at least a little bit. How he handles "A"'s return will tell us a lot about what kind of person he's become now that the truth about him is out.

Why are you excited for "A"'s return? Let us know in the comments below!