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Exclusive Pretty Little Liars Halloween Video: The Hunt for Alison Is On - Plus: A 'Huge' Surprise!

No tricks here: TVLine has a spooktacular Pretty Little Liars treat just for you!

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Bowing Oct. 22 at 8/7c, ABC Family’s annual Halloween special finds the ladies hunting for a potentially alive (!) Alison in the mysterious town of Ravenswood. “‘A’ is not playing a game with us anymore,” co-star Troian Bellisario previews in the following behind-the-scenes exclusive. “It’s really life or death.”

Check out the Liars’ costumes — and death-defying investigation — below.

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