'Pretty Little Liars' Season 3 Premiere Preview: With Mona Locked Away, Will There be a New 'A'?
June 5 2012, Published 8:05 a.m. ET
We were all in shock when at the end of season two finale of Pretty Little Liars, we finally discovered the identity of A, who had been tormenting Hanna (Ashley Benson), Spencer (Troian Bellasario), Aria (Lucy Hale) and Emily (Shay Mitchell).
OK! GALLERY: THE STARS OF PRETTY LITTLE LIARS VISIT GOOD MORNING AMERICA
It was Mona (Janel Parrish), which hit Hanna the hardest, as she was Mona's best friend. How could Mona have been the one torturing them all this time?
Want OK! each day? Sign up here!
But was Mona really the only 'A'? When the premiere picks up tonight, Hanna returns to Rosewood after spending the summer apart from everyone and decides that she has to go visit Mona in the mental hospital to get some answers. But those won't be so easy to come by.
OK! GALLERY: PRETTY LITTLE LIARS STAR LUCY HALE SHOWS OFF HER LEGS WHILE SIPPING COFFEE IN NYC
Check out the sneak peek below from tonight's episode. And don't miss the season premiere of Pretty Little Liars tonight at 8 p.m. ET on ABC Family!