The four girls continue to try and solve Alison murder and figure out who A is.
Ian Thomas
The girls believe Ian is still alive and follow clues to find him. after Spencer sees a message from him on her sister's phone. When they find him, however, he's dead. He has a suicide note that the girls recognize is from A. People believe that Ian was Ali's killer.
The Boyfriends
Spencer continues to see Toby , even though her dad told her not to. He hires Toby to redo the backyard. Toby finds Spencer's old hockey stick and she remembers giving it to Ali. She suspects that Jason hit Ali with it before burying her. Spencer's dad burns the hockey stick. Spencer breaks up with Toby to save him from A.
Aria and Ezra decide to tell people that they are dating, starting with her parents. Before Aria can tell them, her mam asks her if Ezra is having an affair with Spencer.
Aria also begins hanging out with Jason, despite the other girls believing he may have murdered his sister. He kisses Aria and she lets him. She later tells Ezra.
Jason DiLaurentis
Spencer wonders what Jason has in his locked shed. When she is spying on him, she sees where he leaves the key, and she and Emily go to see whats in there. Inside, they find a dark room, full of pictures of Aria. When they come back the dark room is empty.
Aria asks Jason about the photos and he says that he'd found some movie of Ali's and he'd developed it. It all disappeared because he took them to get framed as a gift 4 Aria.
Jason put newspapers up on his windows so that no one could see in. a few times, Spencer could see that he was not alone. One night she goes over to see what is going on, right as her dad comes out of Jason's house. He won't tell her what he is doing there, but later he says he changed Jason and Ali's grandmother's will because Jason had been written out of it.
The Therapist
veronica Hastings believes the girls should see a therapist. She gets the other parents to agree and and, being forced the girls go to see Dr. Sullivan.
During their first meeting the girls don't say much. After the meeting, the girls think about telling Dr. Sullivan the truth, but decide not to tell her.
Emily decides to tell Dr. Sullivan about A. When she goes to the office, the other girls are there and they tell Dr. Sullivan together. After this, Dr. Sullivan feels like she's being followed.
Dr. Sullivan looks through her patient records and figures out who A is. She calls the girls to her office, but when they get there, she is not there. They get a message from A saying they must do what A wants or Dr. Sullivan dies.
