The girls go to a dilapidated doll hospital, where they meet a knowledgeable, but not forthcoming, little boy. Elsewhere, Jenna's surgery has the potential to bring about many changes.
Aria, Emily, Hanna and Spencer are on the quest for answers of what Alison knew before she died and they might have just gotten a big lead when someone from Alison's past appears. Duncan might hold the key to all of the girls' answers, but can they trust him to let down their guard?
Trust issues and feelings of guilt emerge at the town's annual father-daughter dance, where one dad is a no-show. Elsewhere, Ashley gets surprising assistance as she tries to uncover what Hanna's been doing