Under the Gun

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.<br> <br> 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.