'Pretty Little Liars' Season 4 finale: Ian Thomas and Noel Kahn return, but who buried Alison alive?

ian-harding-sasha-pieterse-pretty-little-liars-season-4-finale.jpgABC Family has released some juicy pictures of the "Pretty Little Liars" Season 4 finale, titled "A is for Answers." See them all in Zap2it's photo gallery.

Above, Alison (Sasha Pieterse) is sitting in Ezra's (Ian Harding) car the night she disappeared, then below, she argues with Ian Thomas (Ryan Merriman). Another photo shows an unconscious Alison being buried.

Here's hoping the episode gives us a complete timeline of the night Alison went missing, because there was a lot going on. She got chased by Spencer with a shovel, she had a confrontation with Garrett and Jenna, she argued with Aria's dad, and now apparently she had interactions with both Ian and Ezra, all before she was buried alive and then rescued by Mrs. Grunwald. Alison was quite the busy little bee the night she "died."

But wait! There's more!

In the present time, the Liars have found Alison, and it kind of looks like she's hiding out with Noel Kahn (Brant Daugherty). Now that's interesting. Has Noel been helping Alison this whole time? Is part of her network of spies and informants?

The Season 4 finale is shaping up to be epic, "PLL" fans. We can hardly wait. "A is for Answers" airs Tuesday, March 18 at 8 p.m. ET/PT on ABC Family.

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Photo/Video credit: ABC Family