Searching for the Bow of Orion, the only known means to stop the Darkness, Oliver and Kara independently reached the same booby-trapped underground sanctuary. Kara got he ...

After a freak accident, Clark finds he has the ability to read Lois' mind...and takes advantage of his new ability by asking her out. Oliver Queen is taken hostage by som ...

There is an explosion at Luthorcorp when Oliver is about to announce he controls the interests of Luthorcorp. Oliver suspects Lex is behind the explosion but he realizes ...

Jack's idea of a romantic honeymoon doesn't quite mesh with Allison's. Holly tries on her new body. Jo and Andy followup on an investigation begun by Jack's predecessor. ...

Allison's also brilliant brother visits the newlyweds to give Jack a hard time but Jack's intellect rises to the occasion. Henry and Zane work on freeing Holly from her v ...

Eureka celebrates Feynman day with a plethora of practical jokes. While mostly harmless the jokes make it challenging to identify the real catastrophes Eureka is so prone ...

Fargo is convinced that Holly is still inside of the Matrix computer, but the DOD is determined to wipe its hard drive clean -- losing Dr. Marten forever. ...

A disaster simulation causes a disaster. Then another. And another. Fargo finds Holly in the computer. ...

Warren Hughes makes one of unexpected visits to evaluate the Astraeus crew. Unfortunately his evaluations coincide with crew members' tendencies to swap minds with Jack. ...

With life back to normal, the Astraeus crew struggles to overcome their Matrix Eureka experience: what was real, what wasn't and what could become self-fulfilling prophec ...

Following its accidental launch the Astraeus returns to Eureka and the crew discovers four years have elapsed in an instant. The crew quickly learns leadership has change ...

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 (Sal ...

Hours before the launch of the Titan mission Eureka struggles with black holes and, having decided who will stay and who will go, goodbyes. ...

Grace embraces an honor that strains her relationship with Henry while Deputy Andy becomes an accidental guinea pig for the Astraeus mission -- with catastrophic results. ...

As the Astraeus candidates undergo final interviews, Carter and Allison appeal the results of their relationship audit while trying to keep a lid on escalating mishaps ar ...

Preparations for the Titan mission have the unintended consequence of turning the local Eureka environment into Titan's. Meanwhile, Eureka couples struggle to come to ter ...

When the microbots assembling the Titan space craft finish their task they opt to take on a new project and proceed to devour Eureka in the process. In isolation for a mi ...

Carter and Jo try out Zane's new high-powered risk assessment system, but find that even it may not be a match for the dangerous level of competition among Eureka's scien ...

When Eurekans start behaving oddly, Carter scours the town for a cause - never suspecting that Allison, miles from home, is the one facing real danger. ...

Carter lands in an awkward situation after S.A.R.A.H. and Andy's nuptials hit a snag; Zane keeps harassing Jo for details; an unscheduled launch presents trouble for the ...

Sheriff Carter relates a Christmas story in which the defensive field malfunctions trapping everyone in town for the holiday. So Fargo throws a big party, unaware that th ...

Romantic relationships are in flux. Zoe is home for a visit and hints at a new heartthrob. Henry is courting his wife while Dr. Grant and Carter spar over Allison. Jo, on ...

Allison accepts Carter's offer to include Kevin in a camping trip for some guy time, and Henry decides to level with Grace while a very peculiar -- and dangerous -- relat ...

Claudia Donovan pays a visit to Eureka, hoping to see some amazing technological wonders. She gets more than she bargained for when seemingly random objects begin appeari ...

Allison deals with a major problem during Eureka's space week festival. Written by Anonymous ...

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 Dynamic ...

The gang returns from 1947 and discover that things are not as they remember them. And Dr. Grant came along. ...

During the Founder's Day celebration, Jack, Allison, Fargo, Henry, and Jo somehow end up in 1947, in the middle of the army base that existed before Eureka was founded. T ...

Carter deals with a new magnetic force tearing apart the town, Zoe gets unexpected news about her college application and Tess drops a bombshell about a job offer. ...

An immense ice core from Russia threatens to turn Eureka into a giant ice cube and the residents into icicles. ...

Jack and Allison chase Douglas out of the Eureka lab because it is about to be sterilized. Making their escape a little more difficult, the town has come down with a plag ...

Women who attended a Allison's baby shower are turning up drowned and there was no apparent source for the water. There doesn't seem to be anyway to extract the data stor ...