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.
Writer: I. Marlene King
Air date: 2014-06-10
Runtime: 41 min
Overview: Aria watches over Ezra at the hospital, while Alison and the others set a trap for "A."
Writer: Oliver Goldstick
Air date: 2014-06-17
Runtime: 41 min
Overview: Emily, Spencer and Hanna try to adjust to the new normal; Kenneth searches for Jessica.
Writer: Joseph Dougherty
Air date: 2014-06-24
Runtime: 41 min
Overview: Alison struggles with the death of her mother, as the Liars try to navigate through her new lie.
Writer: Maya Goldsmith
Air date: 2014-07-01
Runtime: 41 min
Overview: Alison attempts to regain her position as leader of the gang upon her return to Rosewood High.
Writer: I. Marlene King
Air date: 2014-07-08
Runtime: 41 min
Overview: Alison returns to Rosewood High and attempts to repair the damage she inflicted years earlier.
Writer: Jonell Lennon
Air date: 2014-07-15
Runtime: 41 min
Overview: The girls look out for Alison's safety after she is spooked by a recent Rosewood "accident.''
Writer: Bryan M. Holdman
Air date: 2014-07-22
Runtime: 41 min
Overview: Aria searches for information on a patient; Spencer borrows Ezra's spy equipment.
Writer: Maya Goldsmith
Air date: 2014-07-29
Runtime: 41 min
Overview: Hanna is pushed down a dark path after Alison moves in; Aria fails in her duties as maid of honor.
Writer: Maya Goldsmith
Air date: 2014-08-05
Runtime: 41 min
Overview: Hanna's drinking gets out of control; Emily looks for information linking Alison to Noel.
Writer: Lijah J. Barasz
Air date: 2014-08-12
Runtime: 41 min
Overview: The Liars try to prevent Alison from sending an innocent man to jail; Hanna seeks a normal life.
Writer: Joseph Dougherty
Air date: 2014-08-19
Runtime: 41 min
Overview: Melissa reveals her knowledge of Alison's disappearance to Spencer; Emily seeks Ezra's help.
Writer: I. Marlene King
Air date: 2014-08-26
Runtime: 41 min
Overview: Aria, Emily, Hanna and Spencer feel trapped and search desperately for a way out of a bad situation.
Air date: 2014-10-21
Runtime: 41 min
Overview: A Halloween-themed ode to viewers features interviews with cast and crew, fan questions and visits from dearly departed characters.
Writer: I. Marlene King
Air date: 2014-12-09
Runtime: 41 min
Overview: The girls are not feeling merry at Christmas because Spencer's murder charge looms over them. Things improve though after they see an opportunity to gather evidence to clear her name.
Writer: Lijah J. Barasz
Air date: 2015-01-06
Runtime: 41 min
Overview: The Liars try to prove that Alison was involved in Mona's death; Aria worries about her future.
Writer: Maya Goldsmith
Air date: 2015-01-13
Runtime: 41 min
Overview: Spencer and Toby are at odds while Emily and Aria struggle with situations that are out of their control.
Writer: Bryan M. Holdman
Air date: 2015-01-20
Runtime: 41 min
Overview: Secrets abound for Aria, Hanna and Spencer while Emily tries to let go of Paige.
Writer: Jonell Lennon
Air date: 2015-01-27
Runtime: 41 min
Overview: Hanna refuses to let "A" frame her for Mona's murder; Spencer's actions put Toby in a bind.
Writer: Joseph Dougherty
Air date: 2015-02-03
Runtime: 41 min
Overview: Mona's friend comes to town to pay her respects.
Writer: Lijah J. Barasz
Air date: 2015-02-10
Runtime: 41 min
Overview: Aria hopes Andrew can be her tutor; Spencer helps Jonny with a new project.
Writer: Francesca Rollins
Air date: 2015-02-17
Runtime: 41 min
Overview: Hanna enters a beauty contest and turns to Emily for help; Aria asks Andrew to keep an eye on Mike.
Writer: Maya Goldsmith
Air date: 2015-02-24
Runtime: 41 min
Overview: The girls scramble for evidence as Alison considers a deal. Spencer has a night out on the town in London.
Writer: Jonell Lennon
Air date: 2015-03-03
Runtime: 41 min
Overview: Ali considers a plea deal, but it incriminates someone else, so the girls try to help her and Mike, as well as themselves. Elsewhere, Spencer unwinds while on a night out in London
Writer: Joseph Dougherty
Air date: 2015-03-10
Runtime: 41 min
Overview: Testimony at Alison's trial reveals a plethora of lies; Spencer, Aria, Emily, and Caleb follow a string of clues in hope of uncovering information that will clear Hanna.
Writer: Maya Goldsmith
Air date: 2015-03-17
Runtime: 41 min
Overview: The prosecution calls a surprise witness in Alison's trial; the girls hunt for last-minute evidence.
Writer: I. Marlene King
Air date: 2015-03-24
Runtime: 41 min
Overview: Shocking secrets come to light for Aria, Emily, Hanna and Spencer as the biggest clue to the "A" mystery is revealed.
