Pretty Little Liars (2010)

S7E3 The Talented Mr. Rollins

Still grappling with the aftermath of Hanna's kidnapping and her grim fate, the Liars turn their attention to another friend in need. Determined to shield Alison from the menacing threats of Uber A, the PLLs leap into action to save her from the hospital. However, their desperate attempt leads to a tragic error that alters everything for them.