Eureka

Success comes at a price, as several citizens of Eureka discover when the DoD sends a corporate fixer to town during an anti-missile test that sees the target drones threatening Eureka.

The Fixer's celebrated efficiency is of little help when inhabitants of Global's sealed biosphere begin devolving, and display characteristics of ancient life forms.

Pressure builds in Eureka as Zoe undertakes an accelerated physics program, the annual dog show grows fiercely competitive, wedding plans unnerve Allison and the earth starts to quake underfoot.

Could there be a loop in time itself? Carter is baffled that he - and only he - is reliving Allison's wedding day again and again and again. He also gets an unexpected visit from his free-spirited sister Lexi (guest star Ever Carradine).

While the others grieve, Eva Thorne sponsors a celebrity archeologist who arrives with the tomb of an Egyptian queen -- complete with the requisite curse. Of course the dead stay dead, don't they?

Carter's job is made more impossible when a superhero begins "saving" the day around Eureka with disastrous consequences. Meanwhile, Thorne's search for a secret buried under Eureka puts Zoe and her friends in mortal danger.

Zoe focuses on the red-hot race for mayor while her science partner, left to her own devices, inadvertently creates a second sun. Carter and Zane can destroy the fiery orb but they need an incredible degree of protection to get close enough.

When a potentially world-altering scientific discovery from Eureka's past finally comes to light, can anyone be trusted with having it? The question is far from rhetorical for Carter: Zoe's life is in immediate danger and Eva Thorne knows why.

Things come crashing down - literally - as Carter and Jo have to step in to avert a gravitational disaster.

While Carter is isolated in a D.O.D. re-certification test, Deputy Lupo gets to be Acting Sheriff. But she is not acting at all like herself. Someone is slowly stealing her identity -- Eureka-style.

Newcomer Dr. Tess Fontana literally shakes things up in Carter's world when she's brought in by Allison to re-open Section Five. But something more dangerous has also been opened. When objects begin moving around on their own, Dr. Drechmeyer is sure poltergeists are responsible.

Tempers and tensions run high as Eureka hosts long-term rival Area 51 in their bi-annual Eureka-fied bowling tournament. When a series of escalating pranks turns deadly, Carter finds himself chasing down a creation of blob-lical proportions.

Teenagers construct an odd building in a Eureka field while asleep.

The return of Henry's ship brings with it a shocking surprise - his former love and partner Kim is on board, a creation of the ship's organic computer. But when electrical anomalies around town become deadly, Carter fears that Kim 2.0 may not have friendly intentions.

Eureka-fied baby gifts for Allison's shower push the envelope of eco-friendly design - and prove deadly when rival scientists are found drowned where drowning is clearly impossible.

Global undergoes a Sonic Cleaning while Tess records a databank of Eurekan's memories when, oddly, the town experiences a communal form of Alzheimer's. When the memory problem traps them inside GD during the cleaning, Allison goes into labor and Carter must help her remember who she is in order to escape.

With Allison on maternity leave, Tess (Jaime Ray Newman) hopes her first day in charge of Global will be uneventful. But as her romance with Carter (Colin Ferguson) starts to heat up, things turn chilly when the arrival of an Arctic ice core brings a new Ice Age to Eureka - and threatens to claim Zane as its first victim. Special guest star Matt Frewer returns as Taggart.

In the 3rd Season finale, Carter (Colin Ferguson) is having a seriously bad day. Zoe (Jordan Hinson) is about to leave for Harvard; Tess (Jaime Ray Newman) has a job offer in Australia; a supercollider test goes awry, and now there's a magnetic disturbance hovering above Eureka. What next?