Hanna assists Lucas with his dating life. Meanwhile, some of Aria's buried memories resurface when she runs into Jason; Spencer worries about Melissa's secretive exchanges with Ian; and Emily's mom can't keep the scholarship news a secret.

Alison's mom comes back to town and asks the girls to take part in a charity fashion show, which Mona helps run when Spencer gets too busy. Meanwhile, Aria works on stirring Jason's memory; and Emily questions the open dating policy she has with Samara.