Wormholes start popping up all over, threatening to rip Eureka apart unless Carter can stop them.
The people of Eureka and being kidnapped and replaced by body-doubles one by one.
A malfunctioning experiment cuts Eureka off from the world and threatens to destroy all human life in town.
A mysterious file leads Jo to uncover a spy ring inside Eureka with devastating consequences.
Dosed with a smart drug Carter's genius gets out of control as he starts to re-write the laws of physics putting his friends and the whole town in danger.
Allison and Carter’s engagement hits rough waters when Carter’s attempt at romance traps them at the bottom of Lake Archimedes in a leaking sub. Their survival depends on Jo’s ability to sort through a series of pranks at GD, Eureka style, and an experiment gone terribly wrong.
As the town of Eureka holds a memorial service for Holly Marten, Fargo and Zane secretly work to retrieve Holly’s "consciousness” from the Matrix Eureka computer mainframe. But with the installation of a new "Big Brother" DOD security program at GD, that isn’t easy. Especially when strange hauntings begin to happen at GD, seemingly tied to Carter gaining new "powers".
The Astraeus crew must move forward after their matrix ordeal, but it isn't easy. And a return visit from DOD psychological assessor Warren Hughes just adds to the pressure.
The Astraeus crew must move forward after their matrix ordeal, but it isn’t easy. And a return visit from DOD psychological assessor Warren Hughes just adds to the pressure. The emotional fallout and strange accidents along with some bizarre behavior from Carter and others have to be kept under wraps. But when Carter’s life hangs in the balance the unusual activities are revealed, risking the very existence of the team.
The ship is finally found but the crew has been taken. When Carter is tasked with attempting to rescue the kidnapped crew by following them into the virtual Eureka, will he be able to get them out before their matrix world collapses for good?
After the Astraeus mission's launch to Titan, the crew manages to land the ship safely and find out they are back on Earth! What seemed like only a few hours was in fact a few years and the crewmembers have to re-adjust.
A mysterious kaleidoscopic wave of color crashes over Eureka, leaving the entire town and its inhabitants animated.
Syfy's hit series Eureka follows the interplay between the geniuses of a government think tank and their regular-guy sheriff. See Eureka's greatest moments, unforgettable characters and special effects in this exclusive retrospective.
Do You See What I See: A mysterious kaleidoscopic wave of color crashes over Eureka, leaving the entire town and its inhabitants animated.
Carter must fight off a plague of the most destructive objects in the universe even as a shocking development threatens the Astraeus ship and crew.