10 Best Episodes of Fringe

FBI Special Agent Olivia Dunham, brilliant but formerly institutionalized scientist Walter Bishop and his scheming, reluctant son Peter uncover a deadly mystery involving a series of unbelievable events and realize they may be a part of a larger, more disturbing pattern that blurs the line between science fiction and technology.

Written by Sophie and last updated on feb 04, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

Fringe - S3E8

#15 - Entrada (Season 3 - Episode 8)

Peter struggles to cope with recent events; Olivia searches for an ally; a device that communicates between universes is discovered...

The episode was rated 8.36 from 1100 votes.

Fringe - S2E18

#14 - White Tulip (Season 2 - Episode 18)


When passengers aboard a commuter train appear to have died a still death, it seems that a switch was flipped because all cell phones, mp3 players, laptops, batteries and bodies have been drained of power. As the Fringe team assembles at the bizarre crime scene, Peter remains suspicious that something is amiss with Walter, who is struggling to keep the unimaginable a secret. When the investigation leads them to Alistair Peck, a very powerful man who has tremendous energy with severe consequences, an ironic set of circumstances surface.

The episode was rated 8.38 from 1144 votes.

Fringe - S4E20

#13 - Worlds Apart (Season 4 - Episode 20)

The teams on both sides fight on for a common cause, and there are shocking developments tied to the Cortexiphan children.

The episode was rated 8.41 from 1213 votes.

Fringe - S4E12

#12 - Welcome to Westfield (Season 4 - Episode 12)


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.

The episode was rated 8.41 from 1221 votes.

Fringe - S3E21

#11 - The Last Sam Weiss (Season 3 - Episode 21)

As devastation spreads on This Side, Walter, Olivia, and Sam Weiss struggle to find a way to stop the destruction and discover that one individual has the ability to allow Peter access to the Machine.

The episode was rated 8.42 from 1125 votes.

Fringe - S3E7

#10 - The Abducted (Season 3 - Episode 7)


When a serial kidnapper “over there” strikes again, the emotional and familiar case hits home for Colonel Broyles, sending a determined Olivia to uncover additional details about the abductions. In the meantime, Olivia fights on and reunites with Henry to enlist his services on an intense and covert mission to return home.

The episode was rated 8.42 from 1099 votes.

Fringe - S5E12

#9 - Liberty (Season 5 - Episode 12)

The Fringe team engages a desperate plan as Olivia embarks on a dangerous and otherworldly journey into the unknown.

The episode was rated 8.44 from 1346 votes.

Fringe - S1E20

#8 - There's More Than One of Everything (Season 1 - Episode 20)


Setting the stage for the dramatic and revealing first season finale are a sudden and unexpected attack on someone with close ties to Fringe Division, the return of bioterrorist David Robert Jones and the inexplicable disappearance of Walter. Find out more about the mysterious events surrounding our trio when questions are answered, observations made, loyalties are tested and the elusive William Bell is finally introduced.

The episode was rated 8.45 from 1227 votes.

Fringe - S4E14

#7 - The End of All Things (Season 4 - Episode 14)

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.

The episode was rated 8.45 from 1223 votes.

Fringe - S2E23

#6 - Over There (2) (Season 2 - Episode 23)


Sacrifices will be made and both universes may never be the same again after Walter and Olivia visit the “other side”

The episode was rated 8.50 from 1092 votes.

Fringe - S2E16

#5 - Peter (Season 2 - Episode 16)

Walter flashes back to 1985 while explaining Peter's otherworldly origins to Olivia. Also, Peter's mother is introduced, and details of the neighboring world reaffirms that there is more than one of everything.

The episode was rated 8.52 from 1174 votes.

Fringe - S4E19

#4 - Letters of Transit (Season 4 - Episode 19)


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.

The episode was rated 8.53 from 1350 votes.

Fringe - S3E22

#3 - The Day We Died (Season 3 - Episode 22)

As the thrilling third season propels to a climactic close, questions will be answered as Peter confronts his destiny and a beloved team member meets an untimely demise.

The episode was rated 8.58 from 1198 votes.

Fringe - S4E22

#2 - Brave New World (2) (Season 4 - Episode 22)


The Fringe team is pushed to the breaking point as they desperately attempt to prevent a catastrophic event that threatens the lives of everyone.

The episode was rated 8.60 from 1277 votes.

Fringe - S5E13

#1 - An Enemy of Fate (Season 5 - Episode 13)

Peter, Olivia, Walter, Astrid and Broyles face off against the Observers in one final and extraordinary battle for the fate of mankind.

The episode was rated 8.71 from 1555 votes.

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