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The Best Episodes of Eureka Season 4

Every episode of Eureka Season 4 ranked from best to worst. Discover the Best Episodes of Eureka Season 4!

Binge this in 15h 22mPeaking at 8.8/10

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

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Seasons5

Episode Rankings

  1. #1 Fan Favorite
    Eureka Season 4 Episode 1 - Founder's Day
    8.8/10(731 votes)

    #1 - Founder's Day

    S4:E1

    It's Founder's Day in Eureka and everyone is in the spirit of the celebration until Jack, Allison, Henry, Jo and Fargo are transported back to 1947 where they meet some familiar faces along the way. Will they be able to get back to 2010 or will they be stuck forever in 1947 where Eureka is not a town, but an Army base.

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  2. Eureka Season 4 Episode 2 - A New World
    8.2/10(551 votes)

    #2 - A New World

    S4:E2

    When the 5 get back to their time, things are changed everywhere. As Henry tries to fix the machine that transported them in the first place, Dr. Grant is making himself as comfortable as he can. Jack is still trying to wrap his mind around the fact that he asked Tess something that she says yes to and the fact that the group's positions changed. As one thing leads to another, a twist happens and things get a little dicey.

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  3. Eureka Season 4 Episode 3 - All the Rage
    7.6/10(534 votes)

    #3 - All the Rage

    S4:E3

    When a prototype sets everyone into bad temper mode, the issue escalates and gets worse beyond the control of what Jack can handle. As Jack and Allison and Tess are the only sane people at Global Dynamics they have to devise a plan that will make everything calm and happy again. Meanwhile, Henry is helping Dr. Grant re-build the bridge that got them back to the new world except everything they touch disappears.

    Director:Mike Rohl

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  4. Eureka Season 4 Episode 4 - The Story of O2
    7.4/10(507 votes)

    #4 - The Story of O2

    S4:E4

    It's space week in Eureka, and everyone is gearing up for the rocket race - except for Carter. General Mansfield is in town for the big Race to the Moon, and is debriefed on a new oxygen-generating fluid designed, called TAP, for colonizing Mars. When the question about someone using TAP to fuel their rocket, the whole town of Eureka is in danger and it is up to Kevin to save the day this time. Will he do it, or will Jack come back to see charred remains of his friends?

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  5. Eureka Season 4 Episode 5 - Crossing Over
    7.9/10(537 votes)

    #5 - Crossing Over

    S4:E5

    Claudia Donovan visits Eureka to see if Fargo's promises of wondrous devices are true, but she finds herself in the middle of a mystery suitable for Warehouse 13 when objects begin to appear randomly around the town and GD, and it must be solved before there are deadly consequences.

    Writer:Paula Yoo

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  6. Eureka Season 4 Episode 6 - Momstrosity
    7.4/10(482 votes)

    #6 - Momstrosity

    S4:E6

    When Sara gives Andy a (as Zane calls it ) an EMO download to give him emotion, she inadvertently affects all Level 6 AIs. Including Tiny. She escapes while being transported to NASA and is on the loose. Meanwhile, Jack takes Kevin camping with Fargo and Grant and Jack is not happy that Grant is there. They argue on who is with Allison and who is not and they are interrupted by Tiny who has an attachment to a certain object of Kevin's.

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  8. Eureka Season 4 Episode 7 - Stoned
    7.5/10(499 votes)

    #7 - Stoned

    S4:E7

    Love is in the air as Carter gets fed up with Grant's pursuit of Allison, Zoe conceals her love and Henry courts Grace. But all the emotions may have to be put on simmer when people in town start turning to stone.

    Director:Joe Morton

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  9. Eureka Season 4 Episode 8 - The Ex-Files
    8.3/10(547 votes)

    #8 - The Ex-Files

    S4:E8

    Eureka's citizens face the return of people from the past; Global Dynamics tests a new device.

    Director:Chris Fisher
    Writer:Amy Berg

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  10. Eureka Season 4 Episode 9 - I'll Be Seeing You
    8.2/10(511 votes)

    #9 - I'll Be Seeing You

    S4:E9

    When Grant and Carter become stranded, they must race back in time to save Eureka.

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  11. Eureka Season 4 Episode 10 - O Little Town
    7.9/10(562 votes)

    #10 - O Little Town

    S4:E10

    Carter can't get into the Christmas spirit especially with the town surrounded by a force-field. Fargo organizes the GD holiday party, and Allison is full of holiday cheer.

    Writer:Unknown

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  12. Eureka Season 4 Episode 11 - Lift Off
    7.9/10(505 votes)

    #11 - Lift Off

    S4:E11

    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.

    Director:Unknown

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  13. Eureka Season 4 Episode 12 - Reprise
    7.8/10(475 votes)

    #12 - Reprise

    S4:E12

    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.

    Writer:Unknown

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  14. Eureka Season 4 Episode 13 - Glimpse
    7.9/10(468 votes)

    #13 - Glimpse

    S4:E13

    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.

    Writer:Unknown

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  15. Eureka Season 4 Episode 14 - Up in the Air
    7.8/10(476 votes)

    #14 - Up in the Air

    S4:E14

    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.

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  16. Eureka Season 4 Episode 15 - Omega Girls
    7.7/10(442 votes)

    #15 - Omega Girls

    S4:E15

    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.

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  17. Eureka Season 4 Episode 16 - Of Mites and Men
    7.9/10(445 votes)

    #16 - Of Mites and Men

    S4:E16

    When mites threaten to take down Global Dynamics, Jack is called into action since Jo is in the middle of training. Allison is struggling with the fact that everyone things that her brain doesn't work and she is determined to prove that she is back in action again. 

    Director:Mike Rohl
    Writer:Unknown

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  18. Eureka Season 4 Episode 17 - Clash of the Titans
    7.4/10(439 votes)

    #17 - Clash of the Titans

    S4:E17

    The Eureka atmosphere becomes toxic when Department of Defense auditor comes to assess the team's relationships.

    Writer:Paula Yoo

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  19. Eureka Season 4 Episode 18 - This One Time at Space Camp...
    7.8/10(538 votes)

    #18 - This One Time at Space Camp...

    S4:E18

    The Astraeus candidates go through their final interviews while Carter and Allison appeal their relationship audit.

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  20. Eureka Season 4 Episode 19 - One Small Step...
    7.7/10(445 votes)

    #19 - One Small Step...

    S4:E19

    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

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  21. Eureka Season 4 Episode 20 - One Giant Leap...
    8.4/10(510 votes)

    #20 - One Giant Leap...

    S4:E20

    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.

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  22. Eureka Season 4 Episode 21 - Do You See What I See
    7.9/10(782 votes)

    #21 - Do You See What I See

    S4:E21

    The quaint town of geniuses is transformed into animated versions of themselves. Sheriff Carter and Allison Blake are secretly planning the perfect holiday surprise for their kids. But a mysterious kaleidoscopic wave of color crashes over Eureka, leaving the entire town and its inhabitants animated.

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Season 4 Ratings Summary

"Founder's Day" is the best rated episode of "Eureka" season 4. It scored 8.8/10 based on 731 votes. Directed by Matthew Hastings and written by Jaime Paglia, it aired on 7/9/2010. This episode is rated 0.6 points higher than the second-best, "A New World".