Sneak Peek footage and new images from the Season 4 episode of "Pretty Little Liars", titled "Grave New World", airing October 22, 2013:
"...'Aria', 'Emily', 'Hanna' and 'Spencer' crash the 'Ravenswood Founders Day Celebration' in their search for 'Alison'..."
Click the images to enlarge and Sneak Peek "Pretty Little Liars" Season 4...
