‘Fringe’ Preview: What’s “Through the Looking Glass, and What Walter Found There”?

With such a long and allusive title, we have to imagine that this Friday's all-new episode of 'Fringe' "Through the Looking Glass and What Walter Found There" is bound to take us to some pretty strange places. Before things start getting really trippy, however, there's still plenty of fallout left not only from the fate of Peter and Olivia's daughter Etta, but Peter's bold "upgrade" last week as well! So what does the latest clip from "Through the Looking Glass and What Walter Found There" reveal?

What could possibly be "Through the Looking Glass and What Walter Found There," you ask? We won't find out until this Friday's all new 'Fringe' installment, but in the meantime the newest clip goes fairly dark right off the bat. No mention of Peter's usurpation of Observer's tech from last week's "An Origin Story," but still a healthy dose of grief over Etta (Georgina Haig)'s death, as we see the agent one last time.

As Jackson himself explains in a recent TVLine clip,“He’s not in a good place...he’s doing exactly the thing he promised both Walter and Olivia that he wasn’t going to do, to abandon them and be hell-bent on avenging the death of his daughter." The Observer tech may have more of an effect on him than he realizes, as "you realize that Peter, as we know him, is very rapidly slipping away."

Check out an all-new clip from Friday's "Through the Looking Glass and What Walter Found There"  below, and tell us your predictions for the final season in the comments!