Falling Skies let us down this week, failing to capitalize on the cliffhanger is set up on part one of "Sanctuary."

Can the TNT drama regain its momentum on "What Hides Beneath?"

The episode will be based on a problem with Waver. As 2nd Mass prepares to take the fight to the Skitters, Tom wonders if his commander is up for the task mentally. Meanwhile, Blair Brown guest stars as a woman has survived the invasion via suspicious means.

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