Before this season of Big Love concludes, Bill's fourth wife will return to the flock.

E! News confirms that Branka Katic will soon reprise her role as Ana. She'll come back on the drama's Valentine's Day episode (airing on Valentine's Day itself) and will come equipped with a shocking revelation:

She's engaged.

Cue suspenseful music and prepare for an intriguing final five episodes of the season.

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