Pretty Little Liars gives fans a season finale they won't forget, as Alison Pretty Little Liars Season Finale Review: “A Is For Answers” (Season 4, Episode 24). Season 4B of "Pretty Little Liars' has finally come to an end and oh my -it is chock full of answers! Of course, it's also jam-packed with questions. A is for Answers is the twenty-fourth episode of Season 4 of Pretty Little Liars and the 95th episode of the show overall. The episode Season 4, Episode Emily digs for answers about Mona and Ezra; Hanna learns about a possible new lead in Alison's case. Pretty Little Liars (season 4) · List of Pretty Little Liars episodes. "A Is for Answers" is the twenty-fourth episode of the fourth season and the ninety-fifth episode Season 4. Episode Directed by, I. Marlene King. Written by, I. Marlene King. On tonight's finale we finally find out what happened the night Ali went missing on Pretty Little Liars season 4, episode 24, “A is for Answers”. Season 4 | Episode 24 Little Liars () Troian Bellisario, Lucy Hale, and Shay Mitchell in Pretty Little Liars () Episode cast overview, first billed only . See also: List of Pretty Little Liars episodes. No. overall, No. in season, Title, Directed by, Written by, Original air date, U.S. viewers.