The Insider.com

With only one episode left in Pretty Little Liars' summer run, you know Tuesday's season finale is going to be an epic-sode of the highest order -- and as you can see in this sneak peek clip, the hour will feature a betrayal so brutal, Hanna is utterly inconsolable.

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The episode, titled The Lady Killer, will see Spencer throw down the gauntlet with Paige and Emily caught in the crossfire when Maya's murderer is revealed. Whether either of those things are related remains to be seen. But given the way Hanna is sobbing, I can't be the only one worried about Caleb's safety, right?

Pretty Little Liars airs Tuesdays at 8 p.m. on ABC Family.