All Hell Breaks Loose On Tonight’s Summer Finale Of “Pretty Little Liars”

 On tonight’s summer finale of Pretty Little Liars, the Liars face off with their enemies in a chaotic fight that ends in someone’s death.

Meanwhile, one of the Liars learns a secret about her past that changes everything while another Liar discovers something about her future that could alter her course forever.

“The Darkest Knight” airs Tuesday, August 30 at 8 PM ET on Freeform.

Watch the promo and check out some exclusive stills from tonight’s episode below.

Photos: Freeform/Ron Tom

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