Shhh: 'Pretty Little Liars' Share Finale Scoop!

The stars of “Pretty Little Liars” are keeping silent on the upcoming season finale - well, mostly silent.

Luckily, TV Squad was able to pry out a few hints out of cast members during ABC Family’s upfront event last week.

"All of the girls have dealt with so much the entire season, but nothing will compare to what they have to deal with in the season finale," Shay Mitchell, who plays Emily, said. "And I am talking slow because I totally could tell you everything. But that would ruin it, and I'm not going to. So I have to be very careful in what I say. But it's going to end with a bang."

The finale, ‘For Whom The Bell Tolls’ is a must see – specifically the last five minutes, said Ashley Benson who stars as Hanna.

“All four girls are put at high risks. We're pushed to our limits. We go through this huge obstacle course," she told TV Squad. "I really can't tell you too much, but the last five minutes are unreal. You get very close to knowing who 'A' is. Insane things happen!"

Troian Bellisario, who plays Spencer, agreed and said things will end on a big cliffhanger.

Season two will begin filming next month. The finale, of course, will reveal what’s to come. Mitchell hints that things will change “drastically.”

Bellisario said she anticipates some answers about what happened to Spencer the night of Alison's disappearance.

"I think you're going to find out what happened soon," Bellisario said. "And the real scary thing is, what are the ramifications of that?"

Fans will start to find out, as the finale airs on March 21. The second season returns on June 14.