One of Aria's past indiscretions is fodder for a new "A." A still-shaky Emily tries to focus on school, but could be derailed when she remembers a crucial piece from "that night."

When Spencer questions her mother taking on Garrett's case, she stumbles upon a larger secret; Aria agrees to be Jenna's accompanist.

Hanna and Mona's visits cause tension with Caleb; Emily finds solace after meeting Maya's cousin; Spencer must know the truth about Melissa.

Aria, Emily, Hanna and Spencer think Jenna's birthday party could be the perfect setting for "A" to strike - and for them to catch their tormentor.

A new clue could lead the girls down the wrong path. Emily gets another flashback from "that night," leading to a surprising suspect, and Aria questions Ezra's new influx of cash.

With new key evidence in Alison's murder case, Hanna fears that "A" may be framing her after a visit from Det. Wilden; Aria decides that she has to turn to Mona for answers; Someone from Ali and Jason's past arrives in Rosewood..

Trying to explain the drugged flask to Paige leads Emily to more insights about "that night"; Spencer asks Caleb for help; Aria learns about Ezra's past.

Aria and Spencer may engage in a heated game of "Truth" to get some answers from Jenna - but are they willing to give up some of their "truths"?

The liars follow a lead about where Maya might have been before her murder; Aria must deal with the aftermath of meeting Ezra's mom.

Spencer learns about Paige's shocking past with Ali, but will Emily listen to what her friends have to say?; Aria feels she has to help Ezra move on from his past.