Twenty years ago, a series of tragic events almost ripped the blue-collar town of Millwood apart. Now, in the present day, a group of disparate teen girls - a brand-new set of Little Liars - find themselves tormented by an unknown Assailant and made to pay for the secret sin their parents committed two decades ago... as well as their own. In the dark, coming-of-age drama, we find ourselves miles away from Rosewood, but within the existing Pretty Little Liars universe - in a brand-new town, with a new generation of Little Liars.​