Shayn Solberg

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.

See the characters from America's smartest little town like you've never seen them before, as you get ready for the all-new season of Syfy's original series, Eureka. And this year, "the equation has changed." Yes, Eureka is going through a major transformation, and as you'll see, its inhabitants might never be the same.

An experiment that will recreate the first moments of the origins of the universe - the "big bang" - goes terribly awry leaving the fate of Eureka in the hands of an antisocial uber-genius.

A toxic waste spill appears to trigger an epidemic of shared dreaming in Eureka. Initially amusing if somewhat embarrassing, this communal dreaming takes a dark turn, when it's discovered that the build-up of a certain neurotransmitter in the dreamers' bodies will ultimately prove lethal. Also available on Xfinity

T'was the night before Christmas, and all through the Smart House, not a creature was stirring...except Carter and Allison.

Blink: A performance-enhancing drug gives people a competitive edge and a dangerous addiction.

Befuddled small-town sheriff Jack Carter guards Eureka's population of eccentric supergeniuses and polices the mysterious Global Dynamics research facility. A former resident returns to town, and his attraction to Allison ignites Jack's jealousy.

The Sci Fi Channel's quirky series returns for a third season, as small-town Eureka sheriff Jack Carter (Colin Ferguson) continues to unravel the mysteries of Eureka's super-genius community and its top-secret research facility, Global Dynamics. Salli Richardson returns as government go-between Allison Blake, and Frances Fisher joins the cast as "The Fixer" Eva Thorne, on assignment to straighten things out at Global Dynamics.

The premiere season of this quirky sci-fi series kicks off with stranded U.S. Marshal Jack Carter (Colin Ferguson) wandering into a remote town populated by geniuses, a not-so-sleepy hamlet harboring a slew of government secrets and bizarre mysteries. Assuming the duties of sheriff, Carter navigates the strange goings on in Eureka, including alien abductions, control-freak computers, poisonous pollens and more.

The quantum chaos continues in the second half of this Emmy-nominated sci-fi drama's third season, in which Jack Carter (Colin Ferguson) loses his job as sheriff of Eureka, a top-secret community where the government nurtures the country's brightest scientific minds. Meanwhile, Jack must also deal with threats to his daughter Zoe's (Jordan Hinson) life and an attraction to visiting scientist Dr. Tess Fontana (Jaime Ray Newman).

The small-town secrets are bigger than ever in the second season of this original Sci Fi Channel series that chronicles the experiences of a former U.S. marshal (Colin Ferguson) who uncovers a community of übergeniuses in the Pacific Northwest. After discovering that they had been happily living in an alternate reality created by a grieving Henry (Joe Morton), the residents of Eureka try to get back to their own brand of normalcy. Also available on VUDU

The hit dramedy series "Eureka" returns for its third season. A small town with big secrets, Eureka is a community of geniuses assembled by the government to conduct top-secret research. What they've unwittingly created is a place where anything imaginable can happen -- and does.