Emily struggles with her family's impending move to Texas; Spencer tries to be supportive of Toby's new plans; Ezra's begs Aria to work things out, but is there anything left to say?

The liars try to keep their distance from each other; Spencer notches up her suspicions about what is going on in the DiLaurentis house, with Jason moving back in.

Hanna helps Lucas with his date, until Caleb is thrown into the mix; Aria has a chance encounter with Jason, which brings back some surprising memories.

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.

Spencer is determined to find out what Jason is hiding at his house; Aria can't seem to get Jason off her mind for a different reason; Hanna helps Caleb with a difficult decision about his family.

Aria tries to process Spencer and Emily's news about Jason while dealing with her feelings for him; Hanna tries to be nice to her future stepsister Kate; 'A' turns up the heat on Emily by trying to push her to breaking point.

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?

It's the Halloween before Alison went missing and the friends hope to score an invite to Noel's Halloween party; Jenna challenges Ali for Queen Bee dominance; Aria learns a shocking revelation about Byron.

Aria continues to question Holden on what exactly he is up to during their "date nights"; Hanna tries to figure out the latest situation with Kate; Emily gets help from an unlikely source to get back on the Rosewood swim team.

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.

The liars are on the quest for answers of what Alison knew before she died; Jason drops off a bag of Alison's personal items that could be more than just a bag of junk; Toby's return to Rosewood brings a surprise reunion that ends dangerously.

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

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..

Trick or treat? The Rosewood Halloween Ghost Train becomes one killer party in this special Halloween-themed episode. Plus, Adam Lambert performs.

Radley Sanitarium gives Mona a clean bill of health, and she heads back to Rosewood High, much to the liars' dismay.

Alison's family is set to bury her again, now that they have her remains, but the girls are divided about going to yet another memorial; Emily visits Dr. Sullivan.

Spencer takes her anger and hurt over her breakup out on Mona; Aria finds she is spending more time with Wes; Emily and Jason work together.

It is a rough time for all of the Liars as Spencer is reeling about the memories from her "lost summer," Aria is still nursing a broken heart, Emily is reeling from Paige's betrayal and Hanna unsuccessfully attempts to wade back into the dating pool. But as each girl tries to deal with her individual issues, they must focus their attention on their suspicions surrounding Mrs. DiLaurentis. Assuming that Mrs. D knows more about Ali and the night she went missing, girls decide to help out at her charity bridal fashion show to gain access to the DiLaurentis house to search for answers. Meanwhile, Ella and Jason return to Rosewood, each with something to hide.

The liars try to wrap their head around the new normal; Jason's odd behavior and Kenneth's search for Jessica starts to raise eyebrows.

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 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.

Now that Alison is in jail, the 4 liars are A's victims. The liars are now scared more than ever.

A search for Mona's laptop is underway, and it may lead to Spencer and Caleb to break Toby's rules. Meanwhile, Aria gets sidetracked when she's about to come clean to Ezra; and Hanna and tries to keep her mom's secret when Pastor Ted returns.

The liars are breaking the law. They need to look in the barrel and find out what's inside. But the cops are on their tail and they're getting ready to arrest. What will be in the tank?

The PLL's struggle to find evidence against "A" to help an imprisoned Hanna get out of jail. Meanwhile, Alison's trial is expected very soon and not only does it decide her fate, but it also unravels a lot of secrets the group has told.

The liars are trapped outside of Charles' dollhouse, where his games grow more sinister; Ezra, Caleb and Toby are determined to locate the liars.

The girls' lives have been turned upside down by their captivity and each one of them is looking for answers to make sense of their ordeal.

Kenneth DiLaurentis comes clean about the family's connection to Charles and all roads lead to Radley.

Charles declares he is coming home for his birthday; Mona is shutting Mike out; Hanna gets an unwelcomed surprise.

After years of torment, the liars will finally come face to face with their tormenter, and uncover the puppeteer behind the hoodie.

Jason returns and goes all-out in order to get rid of Mary; The liars learn something new about Mary and Jessica; Ezra gets a call about someone in his past.

Hanna goes rogue to prove that Noel is Über A; Emily unexpectedly turns to Paige for comfort; Jason and Aria look into Mary's past.