Eureka - Season 4 Episodes

Eureka - Season 4

Eureka - Season 4

Eureka kicks off its 4th season with the introduction of new series regular James Callis (Battlestar Galactica) as "Dr. Grant," a former resident of the town whose unexpected return is cause for serious alarm and, considering his romantic interest in Allison Blake (Salli Richardson-Whitfield), significant friction with Sheriff Jack Carter (Colin Ferguson).

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Episode 0

Let's All Go to Eureka

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Episode 0

Do You See What I See?

In Eureka's "Do You See What I See," the quaint town of geniuses is transformed into animated versions of themselves. Sheriff Carter (Colin Ferguson) and Allison Blake (Salli Richardson-Whitfield) 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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Episode 1

Founder's Day

Eureka is abuzz with geniuses celebrating the anniversary of the founding of their town. Henry, repairing the Founders Car, gets some help from a new acquaintance named Grace; Allison is struggling with the challenges of caring for a toddler and an autistic teenager; Carter isn't looking forward to the big party — his recent breakup with Tess still stings; Kevin tinkers with a mysterious machine, and Zane proposes to Jo, who panics in the moment of tenderness.

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Episode 2

A New World

It's space week in Eureka, and everyone is gearing up for the rocket race - except for Carter. He's getting ready to visit Zoe, and is a little apprehensive of any changes that may have happened because of the time travel.

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Episode 3

All the Rage

Fargo is dealing with his new reputation as a tyrant, as well as the pressure of answering to General Mansfield, who's demanding progress on a non-lethal weapons project. He and Jo head to the lab for a report, where they learn about a web-shooting device called an i-mine and a beam designed to pacify large crowds. Moments later, the i-mine traps Fargo against a wall. An investigation is launched to discover the source of the attack.

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Episode 4

The Story of O2

It's space week in Eureka, and everyone is gearing up for the rocket race - except for Carter. He's getting ready to visit Zoe, and is a little apprehensive of any changes that may have happened because of the time travel.

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Episode 5

Crossing Over

Henry and Grant have their first successful engine test with the bridge device, but when Grace enters, Grant leaves the married couple to do their own celebrating. Henry gets cold feet though, and leaves Grace perplexed. Carter has his own love woes, Allison is being wooed by Grant. But everything's rosy for Fargo, who has prepared an entire day for the visit of Claudia Donovan, an official from Warehouse 13, who's in town to pick up the neutralizing goo upon which her organization depends. Just as she's noting how normal Eureka seems, giant redwoods sprout up, fully grown, in the center of GD headquarters. Claudia stays to help unravel the mystery.

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Episode 6


In this episode, the guys are happy campers until something tries to ruin their trip.

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Episode 7


Zoe is back in town, and everybody wants to catch up with her, including Zane much to Joe and Carter's dismay.

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Episode 8

The Ex-files

Grace and Henry have a party to celebrate their union. Grace has adapted a PTSD therapy to allow the two of them to share memories and rebuild their relationship.

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Episode 9

I'll Be Seeing You

Carter and Allison's afterglow is interrupted by the continuing search for the DED device. At GD Henry discovers an anomaly in the fact that there's an area emitting no radiation—a natural impossibility. As he and Allison trace the source, Zane tells the others that he thinks Grant is behind the theft.

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Episode 10

O' Little Town...

As the Global Dynamics employees celebrate the season at the company holiday party, staff member Dr. Noah Drummer (guest star Chris Parnell) nearly absconds with a volatile experiment. The halls get seriously decked when Dr. Drummer's unstable hydrogen crystal starts to grow at a frightening rate.

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Episode 11


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Episode 12


Following his unauthorized trip, Fargo (Neil Grayston) dreads the arrival of a visitor from the D.O.D., but Dr. Holly Marten (Felicia Day) seems more flustered than fearsome. Holly's interest in Global Dynamics' FTL (Faster Than Light) device leads to more than she bargained for when Fargo demonstrates it - on her. She vanishes instantly, and Fargo is weirdly unrepentant. Elsewhere in Eureka, Henry (Joe Morton) and Grace (Tembi Locke) wish their romantic morning could last forever.

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Episode 13


The Astraeus mission crew will be small, so Eureka's scientists are in a fevered competition to get on board. Fargo (Neil Grayston) and Dr. Holly Marten (Felicia Day) share the daunting task of evaluating the eager candidates -- and a growing attraction to each other. While Allison (Salli Richardson-Whitfield) insists that she does not want a place on the trip to Titan, a discovery from her other-timeline self brings this into question.

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Episode 14

Up In The Air

The town gets a workout as the Astraeus candidates strive to meet the mission's physical fitness requirements. Jo Lupo (Erica Cerra) is running boot camp, Zane (Niall Matter) and Grace (Tembi Locke) are pushing themselves to the limit, and Fargo (Neil Grayston) is stunned to find that even he and Dr. Holly Marten (Felicia Day) have to qualify for the mission physically. He is even more stunned to learn that Holly has been spending time with his nemesis, Dr. Parrish (Wil Wheaton).

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Episode 15

Omega Girls

Allison (Salli Richardson-Whitfield) is back in command at GD but Carter (Colin Ferguson) is certain that something is seriously wrong with her. He persuades Henry (Joe Morton) and Zane (Niall Matter) to snoop into her medical files. What they find prompts Carter to try to imprison Allison, but before he can, Beverly Barlowe (Debrah Farentino) releases a compound that knocks Carter out - along with everyone else in town.

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Episode 16

Of Mites And Men

Allison (Salli Richardson-Whitfield) is almost positive that she has fully recovered from Beverly's attack, but Carter's (Colin Ferguson) overprotective attitude, though sweet, isn't helping. Even worse, Senator Wen (Ming-Na) refuses to reinstate Allison as interim director of Global Dynamics, further undermining her confidence. When Carter discovers that the Astraeus mission's construction mites are devouring the very structure of GD, can Allison rise to the challenge?

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Episode 17

Clash Of The Titans

"Henry (Joe Morton) and Grace (Tembi Locke) want a small, quiet wedding but Jo (Erica Cerra), perhaps missing the wedding she and Zane (Niall Matter) never had, has more elaborate plans in mind. For Carter (Colin Ferguson) and Allison (Salli Richardson-Whitfield), their romantic attachment is developing only-in-Eureka complications: the Department of Defense has sent ""relationship auditor"" Warren Hughes (Wallace Shawn) to assess them.

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Episode 18

This One Time At Space Camp…

The Astraeus clock is ticking as the nervous candidates appear before Senator Wen (Ming-Na) for their final evaluations. One by one, each aspiring crew member is fitted with a memory reader to reveal their deeper motives. Warren Hughes (Wallace Shawn) uses the same device on Carter (Colin Ferguson) and Allison (Salli Richardson-Whitfield) as part of their appeal to his ruling against their relationship -- although he warns them not to expect a reversal of his decision.

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Episode 19

One Small Step

While the Astraeus crew completes the final preparations for their mission, Carter (Colin Ferguson) and Taggart (Matt Frewer) try to find out who -- or what -- melted a cow belonging to a member of the crew. The issue grows in urgency when it becomes clear that the bovine is only the first victim. Has Dr. Parrish (Wil Wheaton), envious of the adventure that Fargo (Neil Grayston) and Holly (Felicia Day) are about to embark on, gone too far?

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Episode 20

One Giant Leap

With the Astraeus countdown underway, Carter (Colin Ferguson) hopes Allison (Salli Richardson-Whitfield) and Kevin (Trevor Jackson) will decide to move in with him. Personal issues get shelved when Carter and Jo (Erica Cerra) investigate a mysterious attack on the presidential convoy. Initial clues point to super-environmentalist Dr. Plotkin (Dave Foley), but when cosmic anomalies start popping up all over town, Plotkin's radical research looks like it might save the day.

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