Now that the Liars know Ali is alive, the hunt to find their former frenemy is on! But the Liars will have to track down Ali before "A" does, and we all know what a trickster the hooded figure can be. Speaking of "A," Ezra is back at Rosewood High and creepier than ever. Next on his lesson plan? Dr. Jekyll and Mr. Hyde. Wow. Subtle much, Ezra? But that's not the only shAdy thing Ezra was up to in "Who's in the Box." He also has a new secluded lair — we mean, cabin — in the woods, and he's already giving Aria the keys! Naturally, Spencer is suspicious.
Ezria drama aside, the rest of the Liars aren't having the easiest time in the love department either. Hanna and Caleb's lovesick tale of two cities comes to a heartbreaking end, while Emily struggles with her lovelorn feelings for Ali. She may love Paige now, but Ali was her first crush, and knowing that she's alive is really messing with Emily's head. As for Spoby, our dynamic duo is reunited, but with both Spencer and Toby on separate missions (Toby is desperate to find out what happened to his mom), will they be able to find time to be together?