Coming off another stellar Halloween episode - read our review of "This is a Dark Ride," along with our Pretty Little Liars Round Table discussion of the episode - Hanna, Spencer and company return on January 8.

And in out first clip from the return episode, we see a very angry Aria, peeved over Garrett's story of her dad being with Alison the night she died.

What else do we witness? The return of Mona to school! Watch both these events collide in the following sneak peek:

ABC Family has also released a trailer for the first installment of 2013. Take a look ahead at what's to come on PLL now.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.