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Spencer's hunt for the truth takes a dangerous turn. Will Hanna be able to figure out Spencer's secret?; Emily looks to make amends with Alison through Shana. Written by Anonymous
All Episodes - S04
EPS02
The presence of Mrs. DiLaurentis continues to unnerve all those around her; Toby shares a heartbreaking secret with Spencer; A nearly kills Mona.
EPS03
Hanna worries her mother is keeping a dangerous secret, which leads to an uncomfortable meeting with Detective Holbrook; Melissa returns to Rosewood.
EPS04
A new detective means new questions, and the liars are asked some hard questions; Spencer lays a trap for Melissa.
EPS05
Spencer and Emily visit a nearby college, but they have different agendas for their time on campus. Hanna is frantic after another horrifying discovery among her mom's things.
EPS06
Trying to protect her mom gets Hanna in trouble with the cops; Searching for the recipient of Ali's mysterious phone number leads Spencer and Toby to Ravenswood.
EPS07
Caleb and Toby team up to investigate A and what happened the night of the lodge fire; Ezra struggles with how he fits into Aria's life; Hanna tries to act normal.
EPS08
Caleb tries to convince Hanna that Mona can't be trusted, causing Mona to prove her loyalty in the most unexpected way; Emily reconnects with her old boss Zoe.
EPS10
Mrs. DiLaurentis offers to let Emily move into Ali's old room; Trying to get involved in Jake's interests; Aria finds an opportunity to follow a lead.
EPS11
Ezra reaches out to Aria, just as she decides to move on with Jake; A Western-themed dance turns into a two-step with A; Hanna is stalked by a fellow student.
EPS12
An intriguing riddle from A has the liars hitting the road and heading to Ravenswood, where they make a shocking discovery.
EPS13
The liars crash the Ravenswood Founders Day Celebration after a clue suggests Ali may be alive; Caleb meets a kindred soul, Miranda.
EPS14
Armed with the knowledge that Alison is alive, Aria, Emily, Hanna and Spencer have more questions now than ever before. Trying to put the pieces together, Hanna comes up with the idea that if they find out who is really buried in Ali's grave it may lead to much needed answers. But as the girls search, Emily has trouble dealing with how she feels about Alison being alive. Meanwhile, Caleb returns to Rosewood, and Ezra has clandestine meetings with Mona and Aria. Written by Worod Agbaria
EPS19
Spencer's numerous sleepless nights, with the help of prescription pills, take a toll on her as her hunt for Ali and much needed answers continues, teleporting her into the world of 1940s film noir.
EPS21
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. Written by Anonymous
EPS22
Emily takes up the sleuthing reins and hunts for answers about Ezra and Mona; Hanna begins a new search after being confronted by Holbrook and Tanner; Spencer and Aria lean on new men in their lives to recover. Written by Anonymous
EPS23
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. Written by ABC Family
EPS25
Set in the fictional town of Rosewood, Pennsylvania, the series follows the lives of four girls, Aria Montgomery, Hanna Marin, Emily Fields, and Spencer Hastings, whose clique falls apart after the disappearance of their leader, Alison DiLaurentis. One year later, the estranged friends are reunited as they begin receiving messages from a mysterious figure named A, who threatens to expose their deepest secrets, including ones they thought only Alison knew. At first, they think it's Alison herself, but after her body is found, the girls realize that someone else is planning on ruining their perfect lives.