On the series premiere of Pretty Little Liars, viewers were introduced to four high school students, former close friends whose past and secrets have torn them apart.

On Tuesday's new episode, meanwhile, we'll meet a fifth: Jenna Cavanaugh.

The accident that left her blind, and the role the show's main quartet played in it, are at the center of the hour, which is aptly titled "The Jenna Thing."

As usual, TV Fanatic will cover the episode in depth, posting a review soon after it airs, replete with the latest Pretty Little Liars quotes, music and more. For now, get excited for the installment via the clip below:

[video url="http://www.tvfanatic.com/videos/the-jenna-thing-clip/" title="The Jenna Thing Clip"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.