Following another stellar, suspenseful episode of Pretty Little Liars (read our weekly review NOW), ABC Family moves right along and airs a new installment on Tuesday.

Sure to deal with the desecration of Alison's memorial, "The Perfect Storm" will find Mother Nature taking aim at our favorite, mysterious high schools girls.

Watch the official promo for it now and get psyched:

[video url="http://www.tvfanatic.com/videos/the-perfect-storm-promo/" title="The Perfect Storm Promo"] [/video]

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