Sneak Peek new images and synopsis from the "Pretty Little Liars" Season 4 summer finale episode "Now You See Me, Now You Don't", written by I. Marlene King, Bryan Holdman and directed by Norman Buckley, airing August 27, 2013 on ABC Family:
"...an intriguing riddle from 'A' has the 'Liars' hitting the road and heading to 'Ravenswood', where they are surrounded by some familiar faces.
"During a very special magic show, one Liar pulls a disappearing act, leaving the other three scrambling to make sure she hasn’t succumbed to A’s tricks.
"But before they can leave Ravenswood, they make a shocking discovery that proves that everything they thought they knew about A and the A team might be wrong.
"With this discovery, the Liars may just have started 'World War A'.
"Meanwhile, 'Hanna' and her mother’s joyous reunion is cut short when A’s sights are set on a new target.
"Then 'Toby' uncovers some surprising information about 'Wren'..."
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