Hanna has some explaining to do to her parents and the police after she�s found with something she shouldn�t have. Mona spills a secret of Spencer�s to the other Liars � leading to hurt feelings amongst the group. Emily tries to help Hanna, only to have �A� turn the tables. And Aria helps out a friend of Mike�s, who gets the wrong impression of her. Meanwhile, Shana keeps popping up in the most unusual places. And Spencer�s investigation into who was on the other end of Ali�s mysterious phone number leads her and Toby to Ravenswood � which is unlike any place they�ve ever seen.