Only five episodes remain in the final season of 'Fringe,' but the battle against the Observers is just beginning. This Friday's all-new episode "Black Blotter" will see the team finally making headway in assembling the various pieces of Walter's plan, receiving a clue toward the elusive "Donald" as Peter, Olivia, Astrid and Walter head into the woods. Will Walter be in his right mind, given three new clips from the episode? And what new mystery has cropped up overnight?

Last week's 'Fringe' episode "The Human Kind" may have introduced another piece of the puzzle to put together in their battle against the 2036 Observers, but this Friday's "Black Blotter" will finally provide answers for the team, introducing us to the mysterious Donald, by way of his cryptic radio. That is, if Walter can even remember him.

FOX has released three new clips from Friday's episode, the penultimate outing of 2012 before 'Fringe' comes to its exciting conclusion in January. Will Peter have recovered enough from removing the Observer tech for another mission? What drug is Walter on this week? What could the "Black Blotter" be? And what will the team make of the mysterious radio signal?

Check out three clips from Friday's all-new 'Fringe' episode "Black Blotter," and give us your predictions for the final season of 'Fringe' in the comments! Only five episodes left before the end!