As of July 2026, Fringe Season 4 aired in 2011 with 22 episodes — streaming now on Amazon Prime Video. Full episode guide and where to watch below.
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Fringe Season 4

2011 22 Episodes Sci-Fi & Fantasy · Drama ⭐ 8/10

If you want science fiction that respects its own premise, Fringe Season 4 is available on and right now. The show says what it needs to say in a single season, no filler. With 2,833 viewer ratings on TMDB, this is not a title flying under the radar. Watch it for Anna Torv — the performance elevates material that could easily tip into self-seriousness. There is no real reason to keep putting it off.

Fringe Season 4 is not trying to be everything to everyone, and that focus is exactly what makes it work. Fringe Season 4 treats its concept seriously enough to follow it all the way through. The fourth season of the American science fiction television series Fringe premiered on Fox on September 23, 2011 and concluded on May 11, 2012, consisting of 22 episodes. The series is produced by Bad Robot Productions in association with Warner Bros. Television. Anna Torv and Joshua Jackson lead a cast that brings real weight to the material. It was aired in 2011. The world-building is meticulous enough to sustain multiple rewatches, with details early on that only make sense later. The consistency throughout is what elevates it — not every moment is the best, but none of them are a reason to stop watching.

For late-night viewing or a proper weekend binge, Fringe Season 4 fits the bill. If you have run out of similar titles to watch, this is a strong next pick. The complete run is available and best experienced without too much prior knowledge of where it goes. Anna Torv anchors it with a performance that makes the more abstract moments feel personal. If you have been burned by ambitious sci-fi before, this is the exception.

📡 Where to Watch Fringe Season 4

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
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🎬 Fringe Season 4 — Episode Guide

E1
Neither Here Nor There
2011-09-23
Just one week after Peter Bishop saved the day and was then wiped from existence, the truce between the two worlds remains intact and the two sides are forced to work together. Lincoln Lee joins the Fringe team as they investigate a shapeshifter case that is very personal to him.
E2
One Night in October
2011-09-30
As the victims of a highly intelligent serial killer "Over There" stack up, the Fringe Division "Over Here" is asked to assist. As the two sides tangle and innocent people remain at risk, the suspect's doppelganger "Over Here," a professor who teaches Forensic Psychology, is brought into the fold an...
E3
Alone in the World
2011-10-07
Two young bullies are found dead and in just a few hours they rot to an advanced state of decomposition. The Fringe team investigates and uncovers an amorphous figure claiming more victims. Walter becomes increasingly distracted with his mental state.
E4
Subject 9
2011-10-14
Olivia uncovers a dangerous force that may be connected to past experiments with Cortexiphan. The investigation forces Walter to leave the lab for the first time in years and travel to Massive Dynamic to examine old case files. Walter struggles with his emotional state as he confronts the demons of ...
E5
Novation
2011-11-04
Olivia and the others of Fringe division attempt to determine the origin of Peter Bishop, who purports himself as Walter's son who had died as a young boy in the original time line.
E6
And Those We've Left Behind
2011-11-11
The Fringe team must find the pattern between tragic time loop anomalies. As the investigation unfolds, Raymond, an electrical engineer, and his wife Kate, a professor of theoretical physics, enter the picture.
E7
Wallflower
2011-11-18
When a man mysteriously dies by an invisible force, his body rapidly begins turning ghostly white. The Fringe team learns that this is not an isolated incident, and there’s evidence that links the predator to someone who passed away with an unknown genetic disorder. Meanwhile, Olivia suffers from mi...
E8
Back to Where You've Never Been
2012-01-13
In an effort to find a way home, Peter journeys to the Other Side to confront Walternate. However, his venture proves more dangerous than expected. Meanwhile, Olivia receives a dire premonition from an Observer.
E9
Enemy of My Enemy
2012-01-20
Peter's visit to the other side intensifies as the alternate FRINGE division faces off against a formidable new foe in a harrowing race against time.
E10
Forced Perspective
2012-01-27
Olivia continues to cope with the ominous warning from the Observers, while Peter and the team track a girl with the mysterious ability to predict death.
E11
Making Angels
2012-02-03
Over Here Astrid gets an unexpected visit from her Alternate, while Peter and Olivia track a killer using a toxin that has yet to be invented. Both universes collide in a case that pushes the boundaries of what is possible.
E12
Welcome to Westfield
2012-02-10
Peter, Olivia and Walter come face to face with a mysterious and terrifying Fringe event as they get trapped in a town that there’s no escaping from.
E13
A Better Human Being
2012-02-17
As the Fringe team investigates a mentally ill patient who appears to be connected to a series of murders, frightening clues and connections are uncovered that lead Olivia to some shocking revelations.
E14
The End of All Things
2012-02-24
The dying Observer comes to see Walter and Peter, who must take extreme measures to learn what secrets he hides and determine if he knows where Olivia is. Meanwhile, David Robert Jones tries to force Olivia to use her cortexiphan abilities by torturing Nina.
E15
A Short Story About Love
2012-03-23
Following the recent shocking revelations and emotional events, Peter weighs his options as the Fringe team investigates a killer targeting love.
E16
Nothing As It Seems
2012-03-30
The Fringe team faces a case that appears familiar to Peter. Strangely, it takes place in this timeline.
E17
Everything in Its Right Place
2012-04-06
Lincoln travels to the other side to join forces with Fauxlivia and his own alternate, as they search for a vigilante with a surprising connection to the shapeshifters.
E18
The Consultant
2012-04-13
Walter travels to the Alternate Universe to assist in the investigation of a Fringe event with ties to both worlds. Meanwhile, David Robert Jones reveals his next target.
E19
Letters of Transit
2012-04-20
The Fringe team goes back to the future as the story jumps ahead to 2036, when the Observers and the Fringe team engage in a game-changing battle.
E20
Worlds Apart
2012-04-27
The teams on both sides fight on for a common cause, and there are shocking developments tied to the Cortexiphan children.

🎭 Cast of Fringe Season 4

Anna Torv
Anna Torv
Olivia Dunham
Joshua Jackson
Joshua Jackson
Peter Bishop
Lance Reddick
Lance Reddick
Phillip Broyles
Blair Brown
Blair Brown
Nina Sharp
Jasika Nicole
Jasika Nicole
Astrid Farnsworth
John Noble
John Noble
Walter Bishop
Seth Gabel
Seth Gabel
Lincoln Lee

📋 All Seasons of Fringe

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