The BEST Episodes of Eureka
Every episode ever - ranked by fan votes!
Last Updated: Oct 11, 2019
Network: Syfy
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 (Colin Ferguson) 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.
#1 - Just Another Day
Season 5 - Episode 13
In the series finale, wormholes randomly materialize around Eureka as the Department of Defense is set to shut the town.
8.42 
#2 - One Giant Leap...
Season 4 - Episode 20
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.
8.35 
#3 - The Real Thing
Season 5 - Episode 2
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.
8.27 
#4 - Force Quit
Season 5 - Episode 3
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.
8.22 
#5 - Lost
Season 5 - Episode 1
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.
8.21 
#6 - Jack of All Trades
Season 5 - Episode 5
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.
8.17 
#7 - Lift Off
Season 4 - Episode 11
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.
8.16 
#8 - Founder's Day
Season 4 - Episode 1
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.
8.12 
#9 - Up in the Air
Season 4 - Episode 14
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.
8.12 
#10 - Smarter Carter
Season 5 - Episode 9
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.
8.12 
#11 - Double Take
Season 5 - Episode 12
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.
8.08 
#12 - Omega Girls
Season 4 - Episode 15
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"
8.08 
#13 - I Do Over
Season 3 - Episode 4
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.
8.07 
#14 - Of Mites and Men
Season 4 - Episode 16
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"
8.06 
#15 - Pilot
Season 1 - Episode 1
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.
8.05 
#16 - Reprise
Season 4 - Episode 12
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.
8.01 
#17 - The Honeymooners
Season 5 - Episode 10
Jack and Allison's perfect honeymoon is interrupted when sabotage is discovered in Eureka. Elsewhere, Holly faces another hurdle to remain intact.
8.00 
#18 - H.O.U.S.E. Rules
Season 1 - Episode 11
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.
8.00 
#19 - This One Time at Space Camp...
Season 4 - Episode 18
The Astraeus candidates go through their final interviews while Carter and Allison appeal their relationship audit.
7.99 
#20 - Worst Case Scenario
Season 5 - Episode 6
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.
7.99 
#21 - Mirror, Mirror
Season 5 - Episode 11
The Department of Justice arrives to investigate Grace, while Henry struggles with his conscience and Eureka is cut off from the world by a malfunctioning experiment that threatens to eradicate the town's populace.
7.99 
#22 - Glimpse
Season 4 - Episode 13
Jo receives a technical boost to her crime-fighting ability with lenses that predict security breaches. Allison's headaches won't go away so Carter plans a vacation. Fargo, meanwhile, deals with an onslaught of volunteers when he announces a space mission with room for civilians.
7.99 
#23 - Welcome Back, Carter
Season 3 - Episode 9
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.
7.98 
#24 - One Small Step...
Season 4 - Episode 19
When an explosion in the Astraeus lab accidentally sends Andy to Titan the team must devise a plan to save him before it's too late! Eureka
7.97 
#25 - If You Build It...
Season 3 - Episode 13
Teenagers construct an odd building in a Eureka field while asleep.
7.96