Pretty Little Liars

Pretty Little Liars Spoilers: Season 5, Episode 12 — The Liars Team Up With Mona! (PHOTOS)

With the ;Pretty Little Liars Season 5 summer finale just a few weeks away, we're gearing up for some jaw-dropping moments. "#fAtalfinale" ring a bell?

ABC Family released some sneak peek pics from the episode and we don't think it's going to disappoint. In the pics, Spencer (Troian Bellisario) and Mona Vanderwaal (Janel Parrish) are dressed up in nurse outfits while appearing to volunteer at a hospital. Could they be trying to get information during their shift?

The other Little Liars seem to be spending more time with Mona as well. In other pics, we see all four of the girls in an intense chat with Mona. The synopsis does say the girls are "putting their faith in a possibly untrustworthy ally," so could Mona be who they're turning to? We think so! But we’re not entirely sure Mona can be trusted — after all, she’s kinda crAzy!

Read on for ABC Family's full episode synopsis and be sure to sound off with your thoughts in the comments!

"Feeling trapped by Alison and “A,” the PLLs turn to an unlikely person for help in “Taking This One To The Grave."

With Alison leading them down a dangerous path and “A” barring them from telling the police the truth, Aria, Emily, Hanna and Spencer feel trapped and are desperate to find a way out of this mess. With nothing else to lose, could the PLLs lose everything by putting their faith in a possibly untrustworthy ally?

Meanwhile, Alison begins to build up her own army now that the PLLs have turned their back on her."

Catch the next episode of Pretty Little Liars Season 5 on Tuesday, August 12, 2014 at 8 p.m. ET/PT on ;ABC Family.