Olivia has been kidnapped. Peter still hasn't found a way home. And David Robert Jones is running amok in both universes.
These are just a few of the problems the Fringe crew faces in this week's new episode, "The End of All Things" — which also happens to be the final episode for nearly a month. As Peter (Joshua Jackson) attempts to recover his lost love — new timeline Olivia (Anna Torv), to be clear — he'll come face-to-face with the man who once saved his life: the mysterious Observer known as September (Michael Cerveris), who will offer up a wealth of answers as to who the Observers truly are. Here are five teases from Friday's episode to whet your appetite: