Lesley Fera

Old and new relationships are examined as the girls try to pay tribute to Alison's memory. But with A taunting them every step of the way can the girls leave the past behind?

Aria, Emily, Hanna and Spencer are reunited following a summer spent trying to recover from the traumatic events in Rosewood.

A new message from "A" sets the girls on edge; Emily's efforts to refocus on school are jeopardised when she recalls information from "that night."

Aria becomes the target of suspicion after she returns to Boston, Emily hides the truth about her life in California, and Alison keeps close watch on her friends.

Hanna's visits with Mona do not sit well with Caleb; Aria dreads telling Ella that Byron is dating Meredith; Spencer seeks the truth about Melissa.

Aria, Emily, Hanna and Spencer are on the quest for answers of what Alison knew before she died, and they might have just got a big lead when someone from Alison's past appears.