Homeland threw another swerve at viewers this week, revealing... something major at the conclusion of "Achilles Heel." We don't want to ruin it for those who have not yet tuned in. Just read our review of the suspenseful fun HERE.

Where could things possibly go next Sunday?

Look for Brody to flash back to his days as a captive, while trying to cut ties with Abu Nazir triggers flashbacks to his time as a captive. Elsewhere, the mosque will lead to some major PR problems for Carrie and the CIA. Check out the official Showtime preview now:

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