Pretty Little Liars season finales are always overflowing with drama, revelations, and life-threatening exploits, and it sounds like the Season 3 finale won't be any different.

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Entertainment Weekly recently spoke to Shay Mitchell (Emily), who dished that the the cast spent "19 or 20" hours on their last day, working hard to make sure the finale topped what they've done before.

"The writers just keep giving us great material," she gushed, adding that this finale has "something that is revealed and also there's a huge event that takes place."

What do you think the "huge event" is? And what about the revelation? Do you think it's related to the hint that Spencer's (Troian Bellisario) world is turned upside down? We're hoping to finally get to the bottom of what happened to Alison (Sasha Pieterse).

For more about what's going down in the finale, check out our finale spoilers roundup here.

Catch the return of PLL Season 3 on Tuesday, January 8, 2013 at 8 p.m. ET/PT on ABC Family.

Source: Entertainment Weekly

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