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Alison returns to school and begins making amends for all of her former mistakes. Most importantly, she apologizes to Paige who seems to accept it. Alison also mentions to Emily that she did have feelings for her before disappearing, and the two begin sharing kisses again.
However, Mona is not happy about Alison's return and confronts her at a church. The fight escalates until the two are slapping each other, and Alison threatens to ruin Mona at school. Unfortunately, she lies to her friends about the encounter, so when Mona shows video of the fight to everyone at school, the liars don't think they can trust Alison anymore.
Meanwhile, the police have identified the girl in Alison's grave - Bethany Young, an escapee from Radley Sanitarium. As all the liars (and their boyfriends) watch the news, an explosion from Toby's house blasts the windows out.
As Toby investigates, the tell-tale sign of a text message is heard from all the liars phones.