The BEST episodes of Eureka season 4

Every episode of Eureka season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Eureka season 4!

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.

Last Updated: 12/12/2024Network: SYFYStatus: Ended
One Giant Leap...
star
8.21
3592 votes

#1 - One Giant Leap...

Season 4 - Episode 20 - Aired 9/19/2011

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.

Directors: Matt Hastings
Writer: Jaime Paglia
Watch Now:AmazonApple TV
Founder's Day
star
7.92
4867 votes

#2 - Founder's Day

Season 4 - Episode 1 - Aired 7/9/2010

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.

Directors: Matt Hastings
Writer: Jaime Paglia
Watch Now:AmazonApple TV
Lift Off
star
7.84
3851 votes

#3 - Lift Off

Season 4 - Episode 11 - Aired 7/11/2011

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.

Directors: Michael Rohl
Watch Now:AmazonApple TV
Up in the Air
star
7.84
3996 votes

#4 - Up in the Air

Season 4 - Episode 14 - Aired 8/1/2011

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.

Writer: Kira Snyder
Watch Now:AmazonApple TV
Of Mites and Men
star
7.83
3837 votes

#5 - Of Mites and Men

Season 4 - Episode 16 - Aired 8/15/2011

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"

Directors: Mike Rohl
Watch Now:AmazonApple TV
Glimpse
star
7.82
4005 votes

#6 - Glimpse

Season 4 - Episode 13 - Aired 7/25/2011

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.

Directors: Michael Robison
Writer: Ed Fowler
Watch Now:AmazonApple TV
Omega Girls
star
7.75
3817 votes

#7 - Omega Girls

Season 4 - Episode 15 - Aired 8/8/2011

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"

Watch Now:AmazonApple TV
This One Time at Space Camp...
star
7.74
3654 votes

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

Season 4 - Episode 18 - Aired 8/29/2011

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

Directors: Andrew Seklir
Writer: Amy Berg
Watch Now:AmazonApple TV
Reprise
star
7.74
3869 votes

#9 - Reprise

Season 4 - Episode 12 - Aired 7/18/2011

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.

Directors: Matt Hastings
Writer: Amy Berg
Watch Now:AmazonApple TV
One Small Step...
star
7.74
3796 votes

#10 - One Small Step...

Season 4 - Episode 19 - Aired 9/12/2011

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

Directors: Michael Robison
Watch Now:AmazonApple TV
I'll Be Seeing You
star
7.73
4662 votes

#11 - I'll Be Seeing You

Season 4 - Episode 9 - Aired 9/10/2010

Dr. Grant attempts to return to 1947 but when Carter intrudes, they both wind up stuck in the past under the threat of altering present-day Eureka once again.

Directors: Michael Robison
Writer: Jaime Paglia
Watch Now:AmazonApple TV
The Ex-files
star
7.72
4723 votes

#12 - The Ex-files

Season 4 - Episode 8 - Aired 8/27/2010

The gang begins seeing visions of people from their pasts, while the town seems to be collapsing around them. Meanwhile, Dr. Grant gets involved with a mysterious faction.

Directors: Chris Fisher
Writer: Amy Berg
Watch Now:AmazonApple TV
Clash of the Titans
star
7.64
3757 votes

#13 - Clash of the Titans

Season 4 - Episode 17 - Aired 8/22/2011

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

Directors: Michael Robison
Watch Now:AmazonApple TV
Do You See What I See
star
7.64
1551 votes

#14 - Do You See What I See

Season 4 - Episode 21 - Aired 12/6/2011

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.

Watch Now:AmazonApple TV
A New World
star
7.64
4646 votes

#15 - A New World

Season 4 - Episode 2 - Aired 7/16/2010

As the Founder's Day festivities continue, Carter and the others must accustom themselves to the new time line and how Dr. Grant fits into it. Unfortunately, re-acclimatization needs to occur on a steep learning curve.

Directors: Michael Robison
Writer: Bruce Miller
Watch Now:AmazonApple TV
Crossing Over
star
7.63
4550 votes

#16 - Crossing Over

Season 4 - Episode 5 - Aired 8/6/2010

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.

Directors: Michael Robison
Writer: Paula Yoo
Watch Now:AmazonApple TV
Stoned
star
7.63
4611 votes

#17 - Stoned

Season 4 - Episode 7 - Aired 8/20/2010

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.

Directors: Joe Morton
Writer: Eric Wallace
Watch Now:AmazonApple TV
The Story of O2
star
7.62
4711 votes

#18 - The Story of O2

Season 4 - Episode 4 - Aired 7/30/2010

As Eureka celebrates Space Week, Dr. Ramsey unveils his cutting edge invention that could allow colonization of Mars. Unfortunately, a slight malfunction may cause it to incinerate Eureka before the dream is realized. Equally bad is that Eureka's go-to guy for crisis intervention has just gone to Boston to visit his daughter at Harvard.

Directors: Colin Ferguson
Watch Now:AmazonApple TV
All the Rage
star
7.61
4720 votes

#19 - All the Rage

Season 4 - Episode 3 - Aired 7/23/2010

Dr. Isaac Parrish, the brilliant director of the Non-lethal Weapons Lab, is feeling a little undervalued these days. Then all his latent hostility goes viral, infecting everyone with such fury that no one is safe, especially Fargo.

Directors: Mike Rohl
Writer: Kira Snyder
Watch Now:AmazonApple TV
Momstrosity
star
7.52
4749 votes

#20 - Momstrosity

Season 4 - Episode 6 - Aired 8/13/2010

Carter's camping trip with Kevin becomes a little scarier than ghost stories by the camp fire when a malfunction with the AI at Global Dynamics may turn some of them deadly. Elsewhere, Henry thinks about telling Grace the truth.

Directors: Mike Rohl
Watch Now:AmazonApple TV
O Little Town
star
7.45
4180 votes

#21 - O Little Town

Season 4 - Episode 10 - Aired 12/7/2010

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.

Directors: Matt Hastings
Writer: Eric Tuchman
Watch Now:AmazonApple TV