Ep 21. Brave New World: Part 1

The Fringe team is back with the first part of the thrilling two-part finale of season four. With the Observers taking over and the fate of humanity at stake, the team must race against time to stop them from destroying the world. The episode opens with Peter, Olivia, Walter, and Astrid investigating a mysterious energy source that is linked to the Observer's plan for global domination. Meanwhile, Etta, and Simon Foster are tasked with stealing a vital piece of technology, a quantum entangled communication device, from an Observer-controlled facility.

As the team works to crack the device, they are captured by the Observers and taken to a headquarters where Peter is forced to undergo a series of tests designed to awaken his hidden powers. These powers are vital to the Observer's plan, and Peter must find a way to resist their control and use his powers for good.

At the same time, Olivia, Walter, and Astrid work to decipher a mysterious code that leads them to an underground laboratory manned by a scientist who has been experimenting with a new type of energy source. The team soon realizes that the energy source is what the Observers are after and that it has the power to destroy the world if it falls into the wrong hands.

As the episode progresses, the stakes continue to rise, and the team must make some difficult decisions if they want to save the world from destruction. From the suspenseful action sequences to the character-driven drama, this episode is a must-see for fans of the series.

Overall, "Brave New World: Part 1" sets the stage for an epic finale that will have viewers on the edge of their seats. With its complex plot, well-drawn characters, and high-stakes drama, this episode is a perfect example of what makes Fringe such a compelling show. Whether you're a die-hard fan or just tuning in for the first time, there's no denying the power and excitement of this episode. So sit back, buckle up, and get ready for an unforgettable ride.