It's Alison's first day back at Rosewood High School. Alison believes everyone has forgiven her for all the harm she'd done back when she was and ordinary student, but then there is Mona - causing everyone to turn on Alison. Mona's army is building. Meanwhile, Caleb returns from Ravenswood, and Jenna returns from New York - broken because of Shana's death. Aria continues to feel guilty. The body in Alison's grave is revealed...
—DanikaDRD