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It has all come down to this on the season four finale of Fringe. Which world will survive?
Walter must revisit his past this week when a mysterious event threatens the world. It's part one of the season four finale.
Shocking developments come to light about the Cortexiphan children on this episode of Fringe.
In 2036 the Observers and the Fringe team find themselves involved in an epic battle.
When a Fringe event affects both worlds, Walter travels to the alternate universe to help. David Robert Jones picks his next target.
Lincoln Lee visits the Alternate Universe to assist on a case.
A Fringe cast is familiar to Peter on this episode, but it's brand new to everyone else.
Peter tries to decide what to do about Olivia this week, while a killer is out and about, targeting love.
This is a significant episode of Fringe, as Peter and the team take extraordinary steps to prevent life-threatening events.
The Fringe team investigates a series of murders on this episode, "A Better Human Being."
Peter is trapped in a mysterious town on Fringe this week, while Olivia barely escapes from a collapsing building.
Astrid receives an unexpected visit this week, while Peter and Olivia go after a murderer equipped with a toxic, dangerous weapon.
Olivia is distracted this week by a warning from the Observers, while Peter assists with the search for a mysterious girl.
A new adversary makes his presence felt on this episode of Fringe. He shows up during Peter's visit to the other side.
Peter confronts Walternate on the first Fringe episode of 2012. Olivia, meanwhile, learns of a dire premonition.
The Fringe team looks into a couple mysterious deaths and their connection to an unknown genetic disorder this week. Olivia also suffers some major headaches.
Stephen Root guest stars on this episode of Fringe. Read on for a recap of the latest Fringe episode.
Arye Gross comes on board this week as a scientist. Read on for our latest Fringe recap.
It's off to Massive Dynamic in New York this week for Walter and Olivia. That's a big step for the former.
Aaron Bird guest stars this week as an infected boy. Walter takes a special interest in the case.
The body count rises Over There as the result of a serial killer this week. The the murderer's alternate identity takes the case Over Here.
A lot has changed on Fringe. The season four premiere picks up in the wake of season three's shocking revelation about Peter.