Will he or won't he? That's the question Homeland fans are asking each other heading into next Sunday's 90-minute season finale.

Okay, whether or not Brody will blow himself and the Vice President up is actually one of a number of questions, along with: what action will Walker take? Will Carrie ever work at the CIA again? Might Brody's vest be intended for someone else? Will Dana continue to snoop around her father's belongings? Will Saul crack a smile?

Indeed, following another stellar episode of this Showtime thriller, it's impossible to guess how this season will end. But at least we can enjoy a taste of what's to come via the following preview for "Marine One."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.