The ladies try to figure out if a high school student could be involved in A.D.’s operation on Pretty Little Liars. "These Boots Were Made for Stalking" is the 12th episode of the show's seventh season.
Considering we know Ali's already met Charles and knows his identity, this might spell the reveal of Black Swan or Red Coat. The look on the gals faces are a picture, right? They look shocked to the core.
The gals might look like they are in a Syfy show, but it's clear they are in search of answers. Anyone else willing to bet that this is the vault that is in the building Rhys works in? Either that or A has taken them in a time machine into the future. Also, could Mona be the person in red we saw chasing Ali last week? It would make A LOT of sense since she was nowhere to be seen.