Season finale.

It appears 'A' really stands out in next week's season finale titled "A dAngerous gAme." The liars have a hard time trusting anyone, even those closest to them. 'A' finally slips up, and the girls are stunned when they come face-to-face with Ali's killer… It's someone they never expected. As one person may rise from the ashes, another dies and the face behind the Queen of Hearts costume is revealed.

Watch this spoiler video for this can't miss episode on Tuesday March 19 at 8:00 PM on ABC Family.

Read last night's PLL Recap: I'm Your Puppet to find out who was spotted in a red hoodie and check out our Revenge Spoilers: Illumination to hear whose sudden appearance has Emily worried.

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Header Photo Credit: ABC Family.

- Amy Mistretta