Based on the Pretty Little Liars series of young adult novels by Sara Shepard, the series follows the lives of four girls — Spencer, Hanna, Aria, and Emily — whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone using the name "A" who threatens to expose their secrets — including long-hidden ones they thought only Alison knew.
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see all options Availability data: JustWatch
- Seasons
- 7
- Episodes aired
- 161
- Latest aired
- S07E20
- Total runtime
- 4d 20h
Timeline when each season aired
- Season 1 June 2010 – March 2011 22 episodes
- Season 2 June 2011 – March 2012 25 episodes
- Season 3 June 2012 – March 2013 24 episodes
- Season 4 June 2013 – March 2014 24 episodes
- Season 5 June 2014 – March 2015 26 episodes
- Season 6 June 2015 – March 2016 20 episodes
- Season 7 June 2016 – June 2017 20 episodes
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S04E01 A Is for A-l-i-v-e
June 11 · 44min find the promo
Show synopsis
The girls are reunited when they each begin receiving threatening messages from someone named "A," suggesting Alison is actually alive - and watching them.
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S04E02 Turn of the Shoe
June 18 · 44min find the promo
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The presence of Mrs DiLaurentis continues to unnerve those around her, especially when she gives Hanna a parrot, whose gift for mimicry provides an insight into Alison's last days.
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S04E03 Cat's Cradle
June 25 · 44min find the promo
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Hanna worries that her mother is keeping a dangerous secret and is determined to protect her at all costs, which leads to an uncomfortable meeting with Detective Holbrook.
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S04E04 Face Time
July 2 · 44min find the promo
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Holbrook's partner, Lt Tanner, comes to town, intensifying their investigation into the Liars and their possible connection to Wilden's death.
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S04E05 Gamma Zeta Die!
July 9 · 44min find the promo
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Spencer and Emily make plans to visit a nearby college, but they have very different agendas for their time spent on campus.
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S04E06 Under the Gun
July 16 · 44min find the promo
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Hanna's attempt to protect her mother gets her into hot water. Hanna has some explaining to do to her parents and the police after she's found with something she shouldn't have.
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S04E07 Crash and Burn, Girl!
July 23 · 44min find the promo
Show synopsis
Caleb and Toby team up to investigate "A" and what really happened the night of the lodge fire and encounter a source that points to a new possible identity for "Red Coat".
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S04E08 The Guilty Girl's Handbook
July 30 · 44min find the promo
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Hanna comes up with a plan to save her mother from a conviction and turns to the only person she thinks can help: Mona. Caleb tries to convince Hanna that Mona can't be trusted.
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S04E09 Into the Deep
August 6 · 43min find the promo
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Paige throws Emily a surprise birthday party with even more surprising guests - Jenna and Shana. But it's the actions of "A" at the party that lead to the biggest shock of all.
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S04E10 The Mirror Has Three Faces
August 13 · 44min find the promo
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Still living at a motel, Emily is taken aback when Ali's mother offers to let her move into Ali's old room and is shocked when the other Liars insist Emily take up the offer.
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S04E11 Bring Down the Hoe
August 20 · 44min find the promo
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After uncovering evidence that suggests "A" is hiding out closer than realised, the Liars step up their investigation into their most recent suspect. Hanna continues to crumble.
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S04E12 Now You See Me, Now You Don't
August 27 · 43min find the promo
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An intriguing riddle from "A" has the Liars hitting the road and heading to Ravenswood, where they are surrounded by some familiar faces.
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S04E13 Grave New World
October 22 · 43min find the promo
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Aria, Emily, Hanna and Spencer crash the Ravenswood Founders Day Celebration after a clue in "A"'s new lair suggests that Ali may indeed be alive.
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S04E14 Who's in the Box?
January 7 · 43min find the promo
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Armed with the knowledge that Alison is alive, Aria, Emily, Hanna and Spencer now have more questions than ever before.
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S04E15 Love ShAck, Baby
January 14 · 43min find the promo
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Now that Hanna has shared with Aria, Emily and Spencer that she has Ali's diary, the girls hope it can shed light on their many questions.
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S04E16 Close Encounters
January 21 · 43min find the promo
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Shana tells Emily that she has a message from Ali, but can Emily and the girls trust Shana? Shana ups the stakes and says that Ali wants to meet Emily, but only Emily.
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S04E17 Bite Your Tongue
January 28 · 43min find the promo
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Hanna's interest in crime novels helps her to come up with a plan to figure out whose body is in Ali's grave. Spencer is working overtime to decipher the stories in Ali's diary.
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S04E18 Hot for Teacher
February 4 · 43min find the promo
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With Spencer's possible revelation about Board Shorts, she is now more determined than ever to prove her theory before bringing it to the other girls' attention.
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S04E19 Shadow Play
February 11 · 43min find the promo
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This special black-and-white episode gives a nod to 1940s-era film noir as Spencer's numerous sleepless nights with the help of prescription pills start to take a toll on her.
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S04E20 Free Fall
February 18 · 43min find the promo
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Spencer is determined to finally tell Aria what she has found out about Ezra, but Emily and Hanna are worried about what it could do to their friend.
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S04E21 She's Come Undone
February 25 · 43min find the promo
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The Liars are concerned for Aria as they watch her crumble after learning shocking news about Ezra. Not knowing what is true or who to trust, Aria goes looking for answers.
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S04E22 Cover for Me
March 4 · 43min find the promo
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Emily takes up the sleuthing reins as she searches for answers about Ezra and Mona. After confronting both, Emily tries to make sense of the heartbreaking situation.
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S04E23 Unbridled
March 11 · 43min find the promo
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Spencer is reeling about the memories from her 'lost summer', Aria is nursing a broken heart, Emily struggles with Paige's betrayal and Hanna attempts to get back into dating.
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S04E24 A Is for Answers
March 18 · 43min find the promo
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After years of questions and mystery surrounding the night Alison DiLaurentis disappeared, The Liars finally learn what really happened to her that September night.