Season 1, Episode 22 - Air Date: 3/21/2011

Season 1, Episode 21 - Air Date: 3/14/2011

Season 1, Episode 20 - Air Date: 3/7/2011

Season 1, Episode 19 - Air Date: 2/28/2011

Season 1, Episode 18 - Air Date: 2/21/2011

Season 1, Episode 17 - Air Date: 2/14/2011

Season 1, Episode 16 - Air Date: 2/7/2011

Season 1, Episode 15 - Air Date: 1/31/2011

Season 1, Episode 14 - Air Date: 1/24/2011

Season 1, Episode 13 - Air Date: 1/17/2011

When things look bleak, the Liars get some assistance from an unexpected source.

Season 1, Episode 12 - Air Date: 1/10/2011

Hanna's return home from the hospital should be a joyous event, but being stuck in a wheelchair and feeling haunted by "A" makes her return feel more like a Hitchcock nightmare than a proper homecoming.

Season 1, Episode 11 - Air Date: 1/3/2012

Moments after Hanna is hit by a car, the girls' world is turned upside down.

Season 1, Episode 10 - Air Date: 8/10/2010

"A" targets the girls once again as they attend an upscale camping trip for one of their friend's birthday party and they fear that "A" may want to crash the fun.

Season 1, Episode 9 - Air Date: 8/3/2010

Rosewood gets a massive storm on the day the students are to take their SAT test, which causes the school to postpone the examinations.

Season 1, Episode 8 - Air Date: 7/27/2010

After much planning, the day of Alison’s memorial is around the corner and the girls are ready to say their goodbyes.

Season 1, Episode 7 - Air Date: 7/20/2010

In the aftermath of the disastrous homecoming dance, the girls try to sort out the devastation that is left behind.

Season 1, Episode 6 - Air Date: 7/13/2010

The homecoming decorating committee is knee deep in balloons, and girls are jockeying for position to be the queen, while four friends from Rosewood just try to stay afloat.

Season 1, Episode 5 - Air Date: 7/6/2010

Trying to ignore "A" backfired for the girls, and now they must pay the penalty. Whether it's a family in crisis, parental praise for an undeserved honor looming over their heads or wearing totally unfashionable scrubs while working off a debt – the girls must deal with it all.

Season 1, Episode 4 - Air Date: 6/29/2010

Tired of being harassed by "A," the girls decide to put a stop to the anonymous emails and text messages by blocking all unknown users.

Season 1, Episode 3 - Air Date: 6/22/2010

The saying "The past will come back to haunt you" is never more true than for Aria, Spencer, Hanna and Emily.

Season 1, Episode 2 - Air Date: 6/15/2010

The circumstances surrounding Alison's disappearance continue to haunt Aria, Emily, Spencer and Hanna, as questions arise about the night she went missing.

Season 1, Episode 1 - Air Date: 6/8/2010

Artsy and eclectic Aria has just returned to town after spending a year overseas and, while she tries to deny feeling hurt over her father Byron's indiscretion with one of his ex-students at the college, and keep her mom, Ella, from finding out, she can't ignore the intense chemistry with Ezra Fitz — Aria's English teacher.