Walter Bishop does the unthinkable to save his son Peter.
Walter's actions have very different repercussions for he and his alternate.
Olivia Dunham is pulled into the world of Fringe Division.
t is discovered that many of the Fringe cases have connections to Walter's past work.
Fringe Division in the alternate universe is in an epic race against time.
Walter & Olivia cross over to the alternate universe in the hopes of rescuing Peter.
Our Olivia is trapped over there, while their Olivia takes her place over here.
The two Olivia's are each desperate to find their way back home.
Peter faces his true destiny and risks everything to save our world.
Peter finds himself fifteen years into the future.
Walter and Peter are desperate to change future events, in the twelfth installment of Fringe