FBI Special Agent Olivia Dunham, brilliant but formerly institutionalized scientist Walter Bishop and his scheming, reluctant son Peter uncover a deadly mystery involving a series of unbelievable events and realize they may be a part of a larger, more disturbing pattern that blurs the line between science fiction and technology.
Season five picks up from events depicted in season four's flash-forward episode the seemingly peaceful Observers seized control of our universe in 2015. Now, in 2036, they have become ruthless rulers who stand unopposed. What awaits in the future, however, is the Fringe Team's final stand to protect our world.