Plot summary
The Liars, Alison, Mona, and Caleb team up with Rosewood P.D. to find Hanna. Emily and Paige continue to rebuild their friendship. Alison reveals to Emily that she's pregnant. Spencer learns that Toby and Yvonne are planning to leave Rosewood. Aria finds out that Nicole is alive. Noel manages to escape and leads the Liars to an abandoned school for the blind where Jenna, armed with a gun, attempts to murder the Liars with Noel. However, Noel, while attacking Hanna and Emily, trips on his axe and accidentally kills himself.
Jenna then shoots at the Liars and gets Spencer. Jenna corners her and is about to execute her when Mary Drake knocks her out and reveals that she is Spencer's biological mother. While leaving town, Toby and Yvonne are in a car accident. "A.D." ending: "A.D." drags an unconscious Jenna from the abandoned school, and Jenna asks if it was they who shot Spencer. They throw her their mask and she realizes it is "A.D.", as they put up their hoodie.
Credits
Adapted from Wikipedia contributors, Pretty Little Liars season 7. HTML formatting and reference markers removed.