A bank robbery is a lot more than it initially seems tomorrow night on Fringe.

During the course of his investigation, Walter finds a thief embedded in a wall and thinks the robbery was aimed at something he possesses.

What happens next? Check out the following preview for "Safe" and partially find out:

[video url="/videos/safe-preview/" title="Safe Preview"] [/video]

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