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PRETTY LITTLE LIARS - "The Perfect Storm" - Tensions run high when the girls are trapped at school while a bad storm brews outside in "The Perfect Storm," an all-new episode of ABC Family's original series "Pretty Little Liars," premiering Tuesday, August 3 (8:00 - 9:00 PM ET/PT). (ABC FAMILY/DANNY FELD).LUCY HALE

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