Wow. So all THAT happened on Fringe this week. An eventful, suspenseful, fascinating episode of this Fox favorite has left us with numerous questions, while also forcing us to wait two weeks for any answers.

That's when Fringe returns with "Novation." What can fans expect on October 27?

As teased in the following official preview, the threat of the return of the translucent shape-shifters coincides will coincide with reemergence of a former Massive Dynamic scientist, played Arye Gross. Elsewhere, Walter will receive a visit in the lab from Nina Sharp. Hmmm.... Watch now: