Never trust a pretty girl with an ugly secret.
Gossip thrives amid the Mercedes-Benz, mega mansions, and perfectly manicured hedges in the exclusive town of Rosewood, Pennsylvania. Everyone has something to hide. Based off the book series of the same name, the series follows four estranged best friends Spencer, Hanna, Aria, and Emily who are reunited after their best friend and queen bee of the group, Alison, goes missing only to discover they are receiving messages from an anonymous "A" who knows all their secrets.
Hanna believes her pals are acting chilly toward her because of her stance regarding Caleb. Meanwhile, Emily has high hopes for her mom's visit to town; and Hanna's stepsister enrolls in the girls' school.
Love is a powerful motivator for Aria, Emily, Hanna and Spencer, especially if it means keeping their loved ones safe
Hanna starts to crumble under the weight of her secrets, while Spencer follows a blind lead
The PLLs realize that "A" is not acting alone and his/her "helper" may be closer than they think
Picks up a month later in the town of Rosewood after the four Liars were caught by police.
The Halloween before Alison vanished finds her facing a possible usurper to her queen-bee throne. Meanwhile, Aria uncovers something surprising about her dad; and Spencer struggles with her class-election campaign as she...
A vengeful "A" punishes the girls for talking to Dr. Sullivan, whose life is in danger unless the girls obey "A" by completing a series of tasks that will bring pain to themselves and their loved ones
With Emily pushed to her limits, the girls finally confide in Dr. Sullivan about "A." Meanwhile, Hanna's grandmother (Betty Buckley) arrives in Rosewood as Tom's wedding nears
Aria feels torn about how to view Jason when Spencer and Emily paint him in a negative light. Meanwhile, Hanna makes an effort to get along with her future stepsister; and mounting pressure from "A" drives Emily close to...
Spencer resolves to uncover what Jason's hiding at his house, and Emily tags along with her. Meanwhile, Aria wrestles with the increasing attraction she feels toward Jason; and Caleb's family problems help Hanna reexamin...
Mounting tension takes its toll on Emily, who winds up in the hospital. Meanwhile, Spencer and Aria try to link a broken field-hockey stick to Alison's demise; and Hanna deals with her dad's impending wedding and Caleb's...
Emily doesn't feel at home after moving. Meanwhile, Aria finds Ezra and Jason competing for her affections; Hanna is displeased with Caleb's indifference to his shady transactions; and Spencer's dad reacts unexpectedly a...
Alison's mom comes back to town and asks the girls to take part in a charity fashion show, which Mona helps run when Spencer gets too busy. Meanwhile, Aria works on stirring Jason's memory; and Emily questions the open d...
Hanna assists Lucas with his dating life. Meanwhile, some of Aria's buried memories resurface when she runs into Jason; Spencer worries about Melissa's secretive exchanges with Ian; and Emily's mom can't keep the scholar...
Aria takes a pottery class at a nearby college, putting her in proximity to Ezra---and Jenna. Elsewhere, Emily manipulates the truth about her swimming prospects; Hanna tries to join the yearbook staff; and Spencer grows...
Emily reluctantly prepares to relocate to Texas until she meets with a college athletic scout. Meanwhile, Hanna deals with her father's return; Spencer puts on a brave face as Toby plans to leave Rosewood; and Aria is to...
In the second-season premiere, the girls face the fallout from what happened with Ian at the church, and their parents have them talk with a therapist (Annabeth Gish). Meanwhile, Caleb returns to see Hanna; and Spencer i...
The Pretty Little Liars decide to put an end to ``A's'' game.
When dealing with relationships and feelings, some secrets are best kept hidden.
As the heat is turned up on the suspicions surrounding Spencer, the girls must come to the reality that they aren't the only ones hiding secrets in Rosewood.
Crying wolf to the cops only causes more trouble for four Little Liars.
Tensions rise as the Liars take stock of the suspects that surround them.
Relationships develop and grow in the town of Rosewood, but not relationships one would expect.
The sharks circling in the water are not just the Rosewood swim team.
The guilt that comes with secrets can sometimes overwhelm a pretty Liar.
A Liar doesn't always get what she wants, but sometimes she gets exactly that, but with an unexpected outcome.
When things look bleak, the Liars get a little help from an unexpected source.
Everyone must deal with the aftermath of what happened at Camp Mona.
Summary: The girls go on an upscale camping trip for a classmate's birthday party, and a text suggests that "A" may be in attendance as well. Meanwhile, the FBI comes to town after new evidence about Alison's case surfa...
Summary: The girls are trapped in the school during a bad storm.
Summary: Alison's brother returns to town and thwarts the girls' plans for her memorial service. Meanwhile, Det. Wilden reappears on the scene; and Hanna's home life threatens her social status at school.
Summary: The girls deal with the fallout from the homecoming dance as they mull over a secret about Toby. Meanwhile, Aria starts getting troubling text messages from someone besides "A." Sara Shepard, author of the book...
Summary: Some ugly secrets cast a shadow on the school's homecoming dance, and one girl's surprising date choice may complicate things for her. The band 2AM Club performs at the dance.
Summary: The girls deal with the repercussions of ignoring "A" and remain troubled by her lipstick message. Meanwhile, a new boy arrives on the scene; and various romances face challenges, thrive or remain in limbo.
Summary: The girls try to put an end to "A" by blocking unknown users in their e-mails and texts. Meanwhile, various surprises await them, including a gift from a potential love interest, unsolicited advice and unwarran...
Summary: Relationships are explored among the girls as they pay tribute to Alison's memory.
Summary: Jenna Cavanaugh comes back to town, and her presence as well as questions about Ali's death force the girls to deal with the ugly past.
Summary: Four estranged friends are brought back together after each begins to receive frightening letters from a person they suspect is a long-missing associate.
