Episode 1 | Pilot

One year after the mysterious disappearance of Alison Dilaurentis, her friends believe their secrets are safe forever, but the truth may be only one text away.

Episode 2 | The Jenna Thing

Flashbacks from Aria, Spencer, Hanna and Emily's past occur when blind girl, Jenna, shows up in Rosewood. Aria tries to stay away from her English teacher, Ezra Fitz. Emily and Maya share a short kiss.

Episode 3 | To Kill a Mocking Girl

Aria has an unsettling encounter with Meredith; Emily is forced to see Toby in a new light; Spencer is reeling in the wake of a vengeful Melissa.

Episode 4 | Can You Hear Me Now?

The liars take matters into their own hands and try to put a stop to "A" by blocking all unknown users, but their problems are far from over.

Episode 5 | Reality Bites Me

Trying to ignore "A" backfired for the liars and now they must pay the penalty as they deal with typical teenage drama - the boy kind.

Episode 6 | There's No Place Like Homecoming

The homecoming dance is supposed to be a time for fun and making memories, but for the liars, disturbing secrets threaten to ruin their perfect night.

Episode 7 | The Homecoming Hangover

After the homecoming dance, the liars try to sort out the devastation; "A" isn't the only one sending Aria texts as tensions rise in the Montgomery household..

Episode 8 | Please, Do Talk About Me When I'm Gone

Last-minute preparations for Alison's memorial get derailed when her brother, Jason DiLaurentis arrives back in Rosewood, and saying goodbye is at the bottom of his list.

Episode 9 | The Perfect Storm

The liars are trapped at school as a bad storm brews, and tensions run high; Byron leans on Ashley for advice on parenting as his relationship with Ella takes a bad turn.

Episode 10 | Keep Your Friends Close

The liars go glamping for Mona's birthday as A's threats escalate and the FBI arrives in Rosewood. But not even a mani-pedi can lift the girls' spirits when the evening takes a dangerous turn.

Episode 11 | Moments Later

Moments after Hanna is hit by a car, the liars' world is turned upside down, as "A" is no longer content playing a game of cat and mouse.

Episode 12 | Salt Meets Wound

As the liars try their best to support Hanna's release from the hospital, they each have their own surprises to deal with.

Episode 13 | Know Your Frenemies

As Noel steps up his pursuit of Ezra, him and Aria start to feel like there may be no way out; Pam's perceived tolerance of Maya comes to a screeching halt; Spencer must handle the return of happy newlyweds Melissa and Ian; "A" ha...

Episode 14 | Careful What U Wish 4

The school's dance-a-thon gives the liars more than sore feet; Aria's old babysitter, Simone, comes to visit and sets her sights on Ezra.

Episode 15 | If at First You Don't Succeed, Lie, Lie Again

Emily deals with a jealous teammate; Aria and Ezra their first public date; Spencer turns to Jason for information.

Episode 16 | Je Suis Une Amie

Emily and Paige are pitted against each other in the big race; Caleb calls in his favor with a guilty Hanna; Spencer takes on the task of tutoring a fellow student to get answers.

Episode 17 | The New Normal

It's parent-teacher conferences and one little liar's father sits face to face with the love of her life. Better believe that "A" has something to say about it.

Episode 18 | The Badass Seed

As tensions rise, the girls ponder the true nature of evil; Aria views the school play as an opportunity to get closer to Ezra, but will her plan backfire?

Episode 19 | A Person of Interest

After a shocking revelation from the police, it looks like the liars could be crying wolf. With everything pointing to Ian, could the girls be wrong?

Episode 20 | Someone to Watch Over Me

As the heat is turned up on suspicions surrounding Spencer, the liars must come to the harsh realization that they aren't the only ones hiding secrets in Rosewood.

Episode 21 | Monsters in the End

Everyone has something to hide, but having to live with those secrets can become a big burden for the liars; Spencer and Toby aren't able to be seen together; Rosewood police officer Garrett keeps his promise to keep a close eye o...

Episode 22 | For Whom the Bell Tolls

In the season one finale, the girls go to an unlikely source for help to put an end to "A" and the mystery surrounding their friend. Can they really stop "A" once and for all?