Some lies are too big to forgive or forget. Emily's reconnecting with an old flame, one baby step at a time, but is she headed toward true love or another bundle of heartache? Spencer's learning about the highs and lows of campus life on a trip to Princeton. Aria's seeing a whole new side to Noel's dad—and it could drive a wedge between her and Noel. And, for better or worse, Hanna's getting in touch with her inner A. Moving on is hard to do, isn't it, ladies? But with a past this ugly, these girls don't deserve a future. Don't worry, soon I'll have enough ammo to end these pretty little liars once and for all.