The sleepy Pacific Northwest town of Eureka is hiding a mysterious secret. The government has been relocating the world's geniuses and their families to this rustic town for years where innovation and chaos have lived hand in hand. U.S. Marshal Jack Carter stumbles upon this odd town after wrecking his car and becoming stranded there. When the denizens of the town unleash an unknown scientific creation, Carter jumps in to try to restore order and consequently learns of one of the country's best kept secrets.
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In the series finale, wormholes randomly materialize around Eureka as the Department of Defense is set to shut the town.
The episode was rated 8.45 from 555 votes.
In the season finale - It's chaos in Eureka when an energy beam rips through main street but the Astraeus launch must go on...with or without Eureka intact.
The episode was rated 8.37 from 478 votes.
Carter and Andy are jailed for trying to steal a piece of equipment to complete a device that Kevin has assembled to search for the Astraeus crew. Meanwhile, Holly comes up with a dangerous theory.
The episode was rated 8.36 from 528 votes.
The Astraeus crew returns to Eureka four years later and must adapt to a myriad of changes, including a more oppressive version of Deputy Andy.
The episode was rated 8.32 from 572 votes.
Carter and Jo continue their search for the missing Astraeus crew. A surprising source confirms the new theory of the disaster, and offers to help them rescue the crew. Meanwhile, back at the lab, lives are at risk as more of the crew comes closer to the truth of their situation.
The episode was rated 8.28 from 535 votes.
Jack starts to swap bodies uncontrollably, which puts both his body and his consciousness in awkward situations. Meanwhile, Warren Hughes returns to GD to evaluate Astraeus crew members' reactions to their abductions. Elsewhere, Zane's quest for answers from the Matrix reveals disturbing results for both him and Fargo.
The episode was rated 8.25 from 533 votes.
Zane pesters Jo for details she does not want to reveal. Carter problem-solves at Andy and S.A.R.A.H.'s wedding. Elsewhere, Zane's actions make him and Fargo unexpectedly airborne.
The episode was rated 8.24 from 488 votes.
Dr. Grant, a former resident of the town, causes serious alarm with his unexpected return. His romantic interest in Allison Blake also causes significant friction with Sheriff Jack Carter.
The episode was rated 8.21 from 476 votes.
Jack deals with a bank robbery which may relate to the sudden gravity issues besetting the citizens of Eureka. Meanwhile, Fargo's rivalry with Isaac Parrish is boosted when he learns Holly and Parrish went on a date.
The episode was rated 8.19 from 477 votes.
On Allison and Stark's wedding day, Sheriff Carter finds himself stuck in a time loop, causing him to experience the same lousy day over and over again. Meanwhile, Sheriff Carter's sister, Lexi visits Eureka.
The episode was rated 8.17 from 460 votes.
While under the influence of a smart drug, Carter becomes a genius like everyone else in town and starts to change the laws of physics. Unfortunately, his condition soon endangers all of Eureka, including Allison's brother who is in town just to meet his new brother-in-law.
The episode was rated 8.16 from 539 votes.
When Zoe comes home for a visit, Jo faces an angry woman who doesn't accept her fumbling explanations about Zane. This all fades to background noise, however, when they find everyone in Eureka unconscious and must find a way to work together so they can revive the town and beat Beverly before she gets hold of valuable data. SYFY has this & "Of Mites and Men" Listed as episode 16 and does not have #17 "Clash of the Titans Listed"
The episode was rated 8.16 from 475 votes.
The people of Eureka are being kidnapped and replaced by body-doubles one by one unless Allison, Fargo and Zane can figure out how to avoid capture and save their town.
The episode was rated 8.11 from 502 votes.
Global Dynamics deals with two threats—a visit from Senator Wen and robotic bugs that can consume everything—it's unclear which is the bigger one. Meanwhile, Allison refuses to acknowledge any deficit with which the implants may have left her. SYFY has this & "Omega Girls" Listed as episode 16 and does not have #17 "Clash of the Titans Listed"
The episode was rated 8.11 from 475 votes.
Carter's duties expand to babysitting when Allison attends a medical conference, and Fargo finds his groove when a certain song is played. Meanwhile, a rocket scientist appears at Café Diem.
The episode was rated 8.08 from 476 votes.
After a strange accident sidelines Eureka's sheriff, U.S. Marshal Jack Carter takes over the investigation into the mysterious phenomenon that led to the death of a resident. Carter learns about the secret purpose of the town while trying to re-establish a connection with his angry and bitter daughter, Zoe. He develops a friendly working relationship with government liaison Allison Blake and meets some of the more eccentric residents of Eureka.
The episode was rated 8.08 from 924 votes.
The Astraeus candidates go through their final interviews while Carter and Allison appeal their relationship audit.
The episode was rated 8.08 from 451 votes.
A new sheriff arrives in Eureka that turns out to be a robot that can change into human form (with mixed results). The town really needs the new sheriff as the town's gravity seems to be acting up.
The episode was rated 8.07 from 440 votes.
S.A.R.A.H - the artificial intelligence that runs Carter's house takes him and a group of residents hostage in an intervention to keep Carter in Eureka. Meanwhile her root program B.R.A.D activates and turns the situation deadly.
The episode was rated 8.05 from 517 votes.
It's disaster drill day at GD and everyone must participate in order to see how well they would do in a disaster. Unfortunately the computer conducting the drill makes the simulation a reality. Elsewhere, Fargo undergoes risky interfaces with the Matrix to confirm Zane's findings.
The episode was rated 8.05 from 517 votes.
Last updated: feb 04, 2023
