A summer has passed since Aria, Emily, Hanna and Spencer found out about Mona being ‘A’ and Maya’s death…. 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… with post-traumatic stress, anger and the acquisition of more secrets the four Liars are anything but fine. 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.