The future of the X-Files project is jeopardized after Mulder secretly infiltrates the government cover-up of a UFO crash.
The Fringe Team responds to recent devastating events by going on the offensive, while one of the key members makes a pivotal and shocking move.
As the fight for the future intensifies, a member of the Fringe team orchestrates a game-changing Fringe event of his own.
During the murder investigation of three identical doctors Mulder makes a stunning discovery regarding his missing sister and Scully's life is threatened by a shape-shifting bounty hunter.
Walter follows leads to a key piece needed to defeat the Observers, while a member of the Fringe team takes on a new role.