Lucy Hale, Troian Bellisaro, Sasha Pieterse, Shay Mitchell, Ashely Benson
The Pretty Little Liars are stepping back into time, flashing back to what happened that fateful night that forever changed their lives.
On Tuesday's Season 4 finale (8/7c, ABC Family), Spencer (Troian Bellisario), Aria (Lucy Hale), Emily (Shay Mitchell) and Hanna (Ashley Benson) will finally hear first-hand from Alison (Sasha Pieterse) what went down after she disappeared during their sleepover. More importantly, the episode will give more clues as to who Alison's deathly afraid of and whether or not the newly suspected Ms. DiLaurentis (Anne Marie Deluise) is the one who's been torturing the girls this whole time. Plus, fans will finally find out who is buried in the grave that had supposedly been for Alison. Ahead of Tuesday's revelations, the cast and producers were on hand at Sunday's Paley Festival panel, moderated by TV Guide Magazine's Damian Holbrook, to tease the finale and what's to come in Season 5. Read on for scoop: