Episodes of "Pretty Little Liars" can be viewed on the ABC Family website (www.abcfamily.go.com) or the ABC Family app on a mobile device. Verification of a cable provider is needed to sign into both.
"Pretty Little Liars," based on the book series by Sara Shepard, follows four high school girls who initially encounter difficulties after the group leader disappears. Eventually, the girls begin receiving mysterious messages from “A” and begin investigating his/her identity. The show, like the books, is set in the fictional town of Rosewood, Pennsylvania. "Pretty Little Liars" premiered on the ABC Family network in June 2010 and just completed its sixth season, as of 2015.