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Pretty Little Liars

Pretty Little Liars Season Season 3 Summer Finale Preview: The Biggest Betrayal of All (VIDEO)

The Pretty Little Liars Season 3 summer season ends on August 28 (sad!), and it looks like it's going to go out with a major bang.

In this preview of Season 3, Episode 12: “The Lady Killer,” Spencer (Troian Bellisario) confronts Paige (Lindsey Shaw), the voice over promises "the biggest betrayal of all," and the Liars "wait for 'A'."

Check it out below.

Catch the PLL Season 3 summer finale on Tuesday, August 28 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaMartin47.

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