"It's gonna be really intense...especially the second half [of the season]," Ian Harding, who plays Aria's ex-boyfriend Ezra on the ABC Family show, told us at the Teen Choice awards. "This season they're really pulling out all the stops."
As for what fans can expect, Ian says prepare to be blown away by the Halloween episode.
"I think people are literally just going to drop dead," Ian said of the annual episode. "A lot of secrets come out...you see people in a very different light."
Sasha Pieterse echoed those sentiments as well, telling us fans will find out for sure whether Alison is dead or alive on that episode.
So, how does the cast keep things light when the material on the show gets dark?
They indulge in a sweet treat.
"When things get really heavy and dark, we have cake in between takes," Ian said. "That's what I do for a living. I make out with Lucy Hale and I eat cake."
Don't miss the next episode of Pretty Little Liars Tuesdays at 8 p.m. on ABC Family.
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Gallery | 'Pretty Little Liars' Cast: Off the Set!