the end of pretty little liars season 7
Pretty Little Liars (season 7) One year later, Mary escapes from prison and Mona is released from Welby but rejoins the A-Team and is sent to kidnap Spencer, who comes face-to-face with A.D. â€“ Alex Drake, her twin sister. Mary reveals she sold Alex to a London family to get out of Radley. Alex ran away and met Wren who revealed everything about Spencer to her and introduced her to Charlotte who left her everything. She became A.D. to use the Liars to find Charlotte's killer and killed Wren as he always saw her as Alex while she wanted to become Spencer to have her "perfect life". She explains that Sara was looking for Charlotte's false treasure in the Radley which was actually the secret file and Jenna recruited Noel to look for "Charlotte's sister". Jenna uses her enhanced sense of smell to figure out "Spencer's not Spencer" and alerts Toby who tells the others. Mona reveals to them that Wren was going to kill her but she convinced him she could get Mary out. The Liars, Toby, Mona, and Caleb come face to face with Alex and Spencer as they cannot tell them apart, until Toby makes the distinction by asking what Spencer's favorite poem from a book she gave him. Mona tracked A.D.'s location has a cop arrest her. The Liars then say goodbye to one another as Aria leaves for her honeymoon with Ezra. Mona moves to Paris and the "cop" is revealed to be her boyfriend who has imprisoned Alex and Mary in her basement dollhouse. In the finale moment, a new set of liars are awaken to find their leader, Addison, has just gone missing.