A summer has passed since Aria, Emily, Hanna and Spencer found out about Mona being "A" and Maya's death. With the terror seemingly over and an alleged murderer now behind bars, the town of Rosewood is slowly healing from old and new wounds and trying to get back to normalcy. Each of the four girls spent their summer in different ways — Aria taking a photography class, Spencer taking college courses at Hollis, Hanna taking cooking classes with Caleb and Emily building houses in Haiti. But what looks normal for each girl is not necessarily so, as all four are hardly over what happened. Now all back together and coming upon the second anniversary of Alison's disappearance, the girls find themselves back on the defensive when a shocking event rocks Rosewood.