: The episode features creepy practical effects, notably Jessica Holt's face contortion, which was performed without CGI by actress Rebecca Mader .
The episode centers on William Bell’s megalomaniacal plan to collapse both the "Blue" and "Red" universes. Fringe - Season 4Eps22
In the Fringe Season 4 finale, the stakes reach a multiversal breaking point as the series shifts from its season-long conflict with David Robert Jones to the reveal of the true architect: William Bell . The Grand Design: A New Genesis : The episode features creepy practical effects, notably
: Bell intends to use Olivia Dunham as a biological power source. Her high levels of Cortexiphan make her a "living battery" capable of fueling the destruction of existing realities to create a "Brave New World" under his control. The Grand Design: A New Genesis : Bell
: After Walter extracts the bullet and Olivia miraculously heals, the team is told that the Fringe division will be funded once more.
: To stop the collapse, Walter Bishop makes the unthinkable choice to shoot Olivia in the head . Because the Cortexiphan is actively regenerating her brain tissue, the bullet's impact disrupts the energy flow, saving both universes but forcing Bell to flee. Key Reveals & Character Arcs