Eureka [OV]

Carter, Allison, Jo, Fargo and Henry find themselves transported back to Eureka 1947. Against all odds and with the help of a budding local scientist, they find a way to set back to the present but find that "home" is now a very different place.

Carter and his fellow travelers begin to realize the startling implications of their return to Eureka -- and of Dr. Grant's unnerving appearance in their midst.

Wil Wheaton guest stars as Dr. Isaac Parrish, an underappreciated scientist whose hostility appears to have gone viral. Blind rage is infecting everyone at Global Dynamics with potentially catastrophic results -- especially for Fargo.

Directed by Colin Ferguson! Allison struggles to relate to her son and deals with inadvertent mayhem during Eureka's Space Week festival, while Carter wonders if the Zoe he is about to visit at Harvard will be the daughter he remembers. Jamie Kennedy guest stars!

Mysterious objects start popping up all over town, threatening to erase Eureka, and Carter (Colin Ferguson) needs the help of Claudia (guest star Allison Scagliotti) from Warehouse 13 to fix it before the present becomes history.

Mini-robot Emo is a parenting skills homework project for Kevin (Trevor Jackson), so when Jo (Erica Cerra) catches Emo spying on her in the shower, everyone assumes Kevin set it up. Taken aback, Allison (Salli Richardson-Whitfield) agrees to let Kevin go camping with Carter (Colin Ferguson) and Fargo (Neil Grayston) so the teen can have some guy time and, more importantly, guy talk.

Romantic relationships are in flux. Zoe (Jordan Hinson) is home for a visit and hints at a new heartthrob. Henry (Joe Morton) is courting his wife while Dr. Grant (James Callis) and Carter (Colin Ferguson) spar over Allison. Jo (Erica Cerra), on the other hand, is done with love for now and just wants to get her house rebuilt. But that project is on hold because hunky paleo-anthropologist Dr.

As Grace (Tembi Locke) finds a way to share her memories with Henry (Joe Morton), the rest of Eureka's citizens face the return of people from the recent - or not so recent - past.

Closer than they've ever been before, Allison (Salli Richardson-Whitfield) and Carter (Colin Ferguson) join forces personally as well as professionally when Jo (Erica Cerra) and Fargo (Neil Grayston) enlist them to help find a stolen Global Dynamics project. The theft has unexpected roots in a plan hatched by Dr.

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.

Carter (Colin Ferguson) and Allison (Salli Richardson-Whitfield) find that balancing their personal and professional lives can be tricky, while the cyber-romance between S.A.R.A.H. and Deputy Andy undergoes the acid test.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.