Through the years, the Fringe Division have faced many dangers. Strange coordinating events, shape-shifting spies, and dimension-spanning rips in space. While the threat is clear, the biggest mystery isn't always who is responsible, but rather what are their intentions? It seems just when we get closer to finding out who the villain of the story is, something flips the whole series on its ear.
Are the people at Mass Dynamic the bad guys? Does the ZFT have humanity's best interest at heart? Can William Bell be trusted? Is Secretary of Defense Walter Bishop actually an evil doppelganger from a parallel universe despite his lack of a goatee? Are the Observers doing more than... observing? Who knows when (or if) we will get the answers, but it is fun to keep watching and speculating 'til we do!