When Emily receives a necklace from "A" that has real teeth on it, the Liars realize this "A" means business and is delivering Ali's body parts to them! "A" is also delivering keepsakes that they each put in Ali's coffin.
"A" forces Aria to tell her father that she and Ali trashed his office years ago and led him to believe that Meredith was to blame. Byron is disappointed and demands that Aria apologize to Meredith. When she does, she learns that Meredith is trying to get a job at Rosewood High.
Meanwhile, with everything going on, Emily's grades are really suffering. She takes a very important make-up test, but gets distracted during the exam and doesn't finish. Ella, who knows what a hard time Emily's been having, feels sorry for her daughter's friend and secretly completes the exam for her.
Elsewhere, Hanna tells Caleb she's been going to see Mona. Veronica mysteriously takes on Garrett's case as his defense attorney. And the Liars realize that Jenna can see!