Flashbacks from Aria, Spencer, Hanna and Emily's past occur when blind girl, Jenna, shows up in Rosewood. Aria tries to stay away from her English teacher, Ezra Fitz. Emily and Maya share a short kiss.

Trying to ignore "A" backfired for the liars and now they must pay the penalty as they deal with typical teenage drama - the boy kind.

As the liars try their best to support Hanna's release from the hospital, they each have their own surprises to deal with.

After a shocking revelation from the police, it looks like the liars could be crying wolf. With everything pointing to Ian, could the girls be wrong?

The liars face the fallout from what happened with Ian at the church, their parents have them talk with a therapist; Caleb returns to see Hanna; Spencer is told Toby is off-limits.

With the shocking news about Ian making the rounds through Rosewood, the liars and their families all try to cope with the outcome; Hanna gets a surprising look into Caleb's life after his shady foster mother surfaces.

On the eve of the Rosewood Charity Fashion Show, the liars are surprised with Jessica DiLaurentis' return to town and her request that they participate in the show on Alison's behalf; Spencer quickly learns that Mona has stepped in and taken charge of running the event.

The girls are uneasy as each confronts complicated matters. Ezra and Jason are invited to a dinner party at the Montgomerys and vie for Aria's attention.

The liars finally reveal the torment "A" has put them through to the one person they trust outside their group, Dr. Anne Sullivan, but could she be next on "A's" target list?

All is not what it seems as "A" sends the girls on a hunt to destroy lives. Can the liars go through with their given tasks in order to save one, or will they ignore "A" to save those around them from being hurt?

Hanna's worst nightmare comes to fruition when Caleb becomes a target of "A" and his computer is in possession of the cops; Aria learns what Holden's been keeping a secret.

With fathers looking to make amends and daughters trying to keep the peace, Rosewood's annual Father-Daughter Dance looks to be anything but fun; Ashley continues her hunt to find answers about what is going on with Hanna with help from a surprising source.

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.

Now it's confirmed that Alison is alive, who was buried in Ali's coffin?

After Hanna reveals that she has Ali's diary, the liars hope it can answer some questions, but are they ready to admit which personal story is about them?

Shana says that Ali wants to meet Emily - and not the other girls - but could it all be part of an "A" plan?; Aria and Hanna deal with matters of the heart.

Emily, Hanna and Spencer are concerned for Aria as they watch their friend crumble after learning shocking news about Ezra. Not knowing what is true or who to trust, Aria goes looking for answers, not wanting to believe this revelation to be true. Spencer is concerned for Aria, but she is not doing so well herself. Trying to prove to her parents and Toby that she can kick the habit on her own, Spencer has to be careful because one misstep could send her to rehab. Can Spencer really rein it in, or will her constant curiosity and drive be her undoing? Meanwhile, Paige has had enough with Emily's secrets and is determined to stop it.

The liars finally get answers about the night Ali disappeared. With their newfound knowledge of Ali's long-held secrets, can they figure out who "A" is?

The PLLs must dodge their dreaded nemesis, "A," while navigating a world with Alison back in it.

The liars are forced to live through Ali's latest lie; Hanna and Aria have loose ends with two people who know about Ali's story; Spencer and Emily try to uncover Jason's whereabouts in New York.

The liars keep their distance from Ali; Spencer finds out Peter has a little more than something to do with Jessica's murder; Aria wants to know more about Shana.

With 'A' back in their lives, the girls are determined more than ever to know his/her identity. While Ali prepares to run away from Rosewood, Hanna faces a challenge in her relationships. Detective Tanner digs deeper into the death of Shana.

The liars get trapped in an abandoned house with A on their trails they struggle to get out. Meanwhile Toby, Spencer, and Caleb try to find out who killed Mona.

'A' has always had fun playing with the liars, but now they have the biggest game to date in store for the girls.

The liars start taking the threats more seriously; Caleb deals with taking the blame for the leak; Emily tries to track down who attacked her; Aria and Ezra move on with the book.

The stalker threatens to kill the liars if they don't divulge Charlotte's killer by the election; Alison experiences strange visions and starts to question her sanity.

Ali's turn at the game forces her to face a monumental personal decision; Hanna and Spencer run into a familiar face with a shocking secret.

Emily teams up with Mona; Ashley returns after learning frightening information; Spencer's family reels from A.D's latest taunt.