Pretty Little Liars: Season 1

Season 1Premiered 2010

Follows the lives of four girls, whose clique falls apart after the disappearance of their queen bee, Alison. One year later, they begin receiving messages from someone named "A" who threatens to expose their secrets- including ones only Alison knew.

Pretty Little Liars
  • HD
  • 5.1
  • CC
  • Pilot

    The premiere of this series based on the bestselling books.

    EPISODE 1 • 45m

    S1 E1 - Pilot
  • The Jenna Thing

    The girls must face an unpleasant past.

    EPISODE 2 • 43m

    S1 E2 - The Jenna Thing
  • To Kill a Mocking Girl

    As "A" taunts, old and new relationships are examined.

    EPISODE 3 • 45m

    S1 E3 - To Kill a Mocking Girl
  • Can You Hear Me Now?

    The girls try to put a stop to "A."

    EPISODE 4 • 44m

    S1 E4 - Can You Hear Me Now?
  • Reality Bites Me

    Ignoring "A" backfired. Plus, the girls face boy drama.

    EPISODE 5 • 45m

    S1 E5 - Reality Bites Me
  • There's No Place Like Homecoming

    Disturbing secrets may ruin Homecoming.

    EPISODE 6 • 45m

    S1 E6 - There's No Place Like Homecoming
  • The Homecoming Hangover

    "A" isn't the only one sending Aria text messages.

    EPISODE 7 • 44m

    S1 E7 - The Homecoming Hangover
  • Please Do Talk About Me When I'm Gone

    Last-minute preparations for Alison's memorial get derailed.

    EPISODE 8 • 44m

    S1 E8 - Please Do Talk About Me When I'm Gone
  • The Perfect Storm

    Tensions are high as a storm traps the girls at school.

    EPISODE 9 • 45m

    S1 E9 - The Perfect Storm
  • Keep Your Friends Close

    The girls go "glamping" in the midseason finale.

    EPISODE 10 • 45m

    S1 E10 - Keep Your Friends Close
  • Moments Later

    Hanna has been hit by a car. Messages from "A" continue.

    EPISODE 11 • 43m

    S1 E11 - Moments Later
  • Salt Meets Wound

    The girls try to support Hanna but have their own troubles.

    EPISODE 12 • 44m

    S1 E12 - Salt Meets Wound
  • Know Your Frenemies

    The girls get by with a little help from their friends.

    EPISODE 13 • 45m

    S1 E13 - Know Your Frenemies
  • Careful What U Wish 4

    Emily enlists the help of the new bad boy at school.

    EPISODE 14 • 44m

    S1 E14 - Careful What U Wish 4
  • If At First You Don't Succeed, Lie, Lie Again

    "A" tries to turn one girl against the other.

    EPISODE 15 • 45m

    S1 E15 - If At First You Don't Succeed, Lie, Lie Again
  • Je Suis Une Amie

    It's a pool of lies for the girls at the Rosewood swim meet.

    EPISODE 16 • 44m

    S1 E16 - Je Suis Une Amie
  • The New Normal

    One liar gets comfy with someone she may not want to trust.

    EPISODE 17 • 43m

    S1 E17 - The New Normal
  • The Badass Seed

    As tensions rise, the girls ponder the true nature of evil.

    EPISODE 18 • 44m

    S1 E18 - The Badass Seed
  • A Person of Interest

    The police turn their focus on a new suspect.

    EPISODE 19 • 44m

    S1 E19 - A Person of Interest
  • Someone to Watch Over Me

    The girls have more secrets to worry about than their own.

    EPISODE 20 • 43m

    S1 E20 - Someone to Watch Over Me
  • Monsters in the End

    The Founders Festival sets the stage for more secrets.

    EPISODE 21 • 44m

    S1 E21 - Monsters in the End
  • For Whom the Bell Tolls

    In the season one finale, can the girls really stop "A"?

    EPISODE 22 • 45m

    S1 E22 - For Whom the Bell Tolls

Cast

  1. Troian Bellisario

  2. Ashley Benson

  3. Holly Marie Combs

  4. Lucy Hale

  5. Ian Harding

  6. Bianca Lawson

  7. Shay Mitchell

  8. Sasha Pietrese