After getting a major clue from Garrett, Hanna and Spencer set out on their separate missions. Hanna sees a perfect opportunity to catch "A" or to at least see who is helping Garrett out. But her perfect plan starts to quickly unravel, leaving Hanna frustrated and desperate. Spencer tries to figure out the meaning of the clue and enlists Jason's help in the search. Meanwhile, Emily gets another flashback from "that night" which leads her to a surprising suspect and Aria starts to question Ezra's sudden influx of cash.

The episode was rated 7,76 from 518 votes.

Spencer and Aria find themselves at the Kahn brothers' party in hopes of saving Spencer's college career. What originally was going to be a quick stop by to ask a favor of CeCe's friend turns into an opportunity for Aria and Spencer to get some answers from Jenna with a heated game of "Truth." But will Aria and Spencer be willing to give up some of their "truths" to get the answers they are looking for? Meanwhile, Hanna gets another text from "A" about Caleb.

The episode was rated 7,76 from 521 votes.

Spencer hasn't been herself lately, but has she had enough to just disappear? Could "A" have done something to her? These are all questions that Aria, Emily and Hanna are asking themselves when Spencer goes missing. But when it turns out even her family doesn't know where Spencer has gone, the girls frantically search for answers hoping their worst fears aren't true. Meanwhile, Emily gets the surprise of a lifetime when she meets Gold Medalist Missy Franklin.

The episode was rated 7,77 from 523 votes.

After learning that Noel and his family's cabin had something to do with "that night" and possibly Maya's disappearance, the girls work to try and put the pieces together. Hanna and Emily head out to the Kahn family cabin looking for clues linking Maya to the site, while Spencer does some snooping of her own on Noel. Could Noel have had a hand in this after all, or are he and Jenna just bluffing to send Aria, Emily, Hanna and Spencer down the wrong path? Meanwhile, Aria must deal with the aftermath of meeting Ezra's mom and the information about Ezra's past.

The episode was rated 7,77 from 516 votes.

Radley Sanitarium has given Mona a clean bill of health and she is headed back to the halls of Rosewood High, much to the Liars’ dismay. With their former tormentor now back in their everyday life, Aria, Emily, Hanna and Spencer take very different views of the “new” Mona. She made their lives a living hell… Is she really cured? And what other secrets could she be holding onto? It’s up to Mona to prove to the Liars if she has changed or not.

The episode was rated 7,82 from 582 votes.

When dealing with matters of the heart, people react in many different ways: Still crushed over her break-up, Spencer continues her downward spiral as she now takes her anger and hurt out on Mona. Caleb, on the other hand, hides his pain by being closed off when discussing his father. But when Hanna devises a plan to bring father and son back together, will that help Caleb heal old wounds or just make things harder? And Aria, who is still missing Ezra, finds she is spending more time with Wes. Meanwhile, Emily and Jason work together to put together the pieces of Ali's trip to Cape May and what really happened during that vacation.

The episode was rated 7,86 from 527 votes.

With new key evidence in Alison's murder case, Hanna fears that "A" may be framing her after a visit from Det. Wilden. With paranoia setting in, Aria decides that she has to turn to Mona for answers if she is going to help Hanna. But is Aria ready to face her former tormentor, and more to the point, is Mona ready to give Aria the answers the PLLs are desperately looking for? Meanwhile, someone from Ali and Jason's past arrives in Rosewood and piques the girls' interest.

The episode was rated 7,87 from 536 votes.

Spencer is finally ready to talk, but Emily is not so ready to accept what she has to say. Will she heed Spencer's warnings or will Emily go off to find her own answers down a path "A" has designed for her? Hanna, on the other hand, is preoccupied with helping her mother after Ashley is involved in a hit-n-run accident. Now having a new secret to hide, Hanna wonders if "A" had something to do with it after all. With Aria, Emily, Hanna and Spencer are now really afraid does "A" have them right where they want them? Meanwhile, Aria has to come to terms with Ezra's new life with Malcolm.

The episode was rated 7,88 from 526 votes.

As "A" continues to play games, the stakes are raised higher as each girl is forced into difficult positions. Aria starts seriously contemplating her relationship with Ezra as his new family situation continues to eat away at her. Hanna is thrown into the middle of Caleb's family drama when Jamie's shady past comes back to haunt him. Emily is determined to prove Spencer wrong in hopes of helping her, but she might not be ready for what she finds. In the end, will the Liars be able to get out of their sticky situations or will "A" have them right where he/she wants them? Meanwhile, Spencer searches for answers about Mona's time in Radley Sanitarium.

The episode was rated 7,93 from 539 votes.

A new "A" player is in town and is determined to show the Liars that he/she means business. After getting a gruesome reminder that "A" is still calling the shots, Aria, Emily, Hanna and Spencer try to quickly devise a plan on how to deal with this old/new threat and the usual game that has been taken up a notch. Spencer and Hanna continue to play with fire as they look for answers, while one of Aria’s past indiscretions becomes fodder for "A’s" game. Meanwhile, a still very shaky Emily tries to focus on school but could easily be derailed when she remembers a crucial piece from "that night."

The episode was rated 7,99 from 566 votes.

Aria is down for the count when sidelined by the flu, so Hanna and Emily are on their own to follow up on a new clue. Surprisingly, Meredith steps up to help take care of Aria while her father is away, but when it starts to look like Meredith may have ulterior motives to her nursing Aria back to health, Hanna and Emily turn their attention towards saving their friend. Is Meredith just trying to start anew with Aria and be her number one fan, or is there reason for her friends to be concerned? Meanwhile, Spencer takes a break from all the sleuthing to surprise Toby for their anniversary.

The episode was rated 8,00 from 593 votes.

A summer has passed since Aria, Emily, Hanna and Spencer found out about Mona being "A" and Maya's death. With the terror seemingly over and an alleged murderer now behind bars, the town of Rosewood is slowly healing from old and new wounds and trying to get back to normalcy. Each of the four girls spent their summer in different ways — Aria taking a photography class, Spencer taking college courses at Hollis, Hanna taking cooking classes with Caleb and Emily building houses in Haiti. But what looks normal for each girl is not necessarily so, as all four are hardly over what happened. Now all back together and coming upon the second anniversary of Alison's disappearance, the girls find themselves back on the defensive when a shocking event rocks Rosewood.

The episode was rated 8,01 from 617 votes.

Spencer is back home and presenting a good front, but Aria, Hanna and Emily are not so sure their friend is fully back after seeing how fragile she was just a day or so before. Unfortunately the girls don't have much time to ponder Spencer's health as shocking revelations are brought to the forefront. With so much happening and new information being uncovered, will the Liars be ready for what is waiting for them?

The episode was rated 8,18 from 620 votes.

With Garrett's trial for Maya's murder starting, the town of Rosewood has become a media spectacle. At odds with her friends over Paige, Emily doesn't know where to turn when the media attention becomes too much for her. "A" sees this as a perfect opportunity and takes advantage of the situation and sends Aria, Emily, Hanna and Spencer on a path to a possible truce. But is "A's' peace offering real or just a trap for a much darker ending? Meanwhile, Aria, Emily, Hanna and Spencer are betrayed as someone very close to them is revealed as part of the "A" team.

The episode was rated 8,28 from 576 votes.

Aria, Emily, Hanna and Spencer are looking forward to some good old Halloween fun now that the traumatic events with Nate are behind them. But once aboard the Rosewood Ghost Train, the girls are in for much more than just some childish trick or treats. With "A" running amuck and unexpected party-goers popping up at every turn, this Halloween event becomes one killer party.

The episode was rated 8,31 from 619 votes.