21. She's Come Undone

Aria reveals to her friends that Ezra suspects one of them is "A." Spencer promises her parents and Toby that she will kick the pill habit on her own. Aria ransacks Ezra's apartment after finding more of his notes with her name all over them. Her friends find her and take her home - but not before Spencer collects some pages of Ezra's writing before they leave. Emily goes to deliver Ali's money to a P.O. Box per Shana's request but is cornered by Paige. Emily reveals to Paige that Ali is still alive.

Paige and Emily give each other ultimatums: to refrain from communication with Ali or end their relationship and for Paige to not let any harm come to Ali. When Hanna apologizes to Travis for kissing him, he tells her that his dad is in court, accused of taking bribes from Wilden in exchange for business leads. After Detective Holbrook testifies, the judge grants probation to Travis's dad. Hanna thanks Holbrook with a short, awkward kiss. "A" places a bottle of pills in Spencer's locker. She takes them after searching Ezra's notes and suspecting her father hired a P.I. to follow her.

Spencer interrogates Mrs. DiLaurentis about the night of Ali's disappearance but Mrs. DiLaurentis kicks her out for her erratic behavior. Hanna prevents Aria from telling Hackett about her relationship with Ezra. Paige surreptitiously drops a note stating that Alison is alive into a police car. ' A' ending: "A" reads Ezra's story by a fireplace.