Season 3
18 episodes
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E1 Bad to the Drone
unrated2008-07-29 · 44 min
The search is on for an escaped drone as Eva Thorne arrives to assist the cleanup of damages which Global Dynamics has caused.

E2 What About Bob?
unrated2008-08-05 · 44 min
Carter and Allison investigate when a scientist mysteriously disappears from a sealed biosphere. Meanwhile, the "Fixer" tries to make Eureka's efforts more profitable.

E3 Best in Faux
unrated2008-08-12 · 44 min
Eureka's annual dog show is underway and is like none other. Meanwhile, Sheriff Carter experiences an earthquake; Zoe debates quitting the accelerated physics program; and Allison starts the process of fitting her wedding dress.

E4 I Do Over
unrated2008-08-19 · 44 min
It's Allison and Stark's wedding day and Carter finds himself reliving it over and over. Meanwhile, Carter's sister, Lexi, visits the town.

E5 Show Me the Mummy
unrated2008-08-26 · 44 min
A search for a mummy ensues after a famed archaeologist opens the tomb of an Egyptian queen at Global Dynamics.

E6 Phased and Confused
unrated2008-09-09 · 43 min
Carter's job is made more difficult when a super hero emerges. Meanwhile, Zoe and her friends are imperiled when Thorne makes a subterranean search beneath Eureka.

E7 Here Come the Suns
unrated2008-09-16 · 43 min
The Eureka mayoral race is overshadowed by the sudden arrival of a second sun, forcing Carter, Allison and Zane to investigate it more closely.

E8 From Fear to Eternity
unrated2008-09-23 · 44 min
Trust issues are produced by a scientific find, along with sinister results. Zoe's life is in jeopardy, and Eva Thorne knows what has caused the predicament.

E9 Welcome Back Carter
unrated2009-07-10 · 44 min
Carter interviews for a job with the Department of Homeland Security, after being terminated as the sheriff. Deputy Lupo decides to resign after discovering that a very personable robot is the new sheriff.

E10 Your Face Or Mine
unrated2009-07-17 · 44 min
Jo displays atypical behavior after a DNA scan malfunctions, unfortunately it's while she's interim sheriff because Carter is undergoing a 48-hour DOD recertification test.

E11 Insane In The P-Brane
unrated2009-07-24 · 44 min
Dr. Tess Fontana reopens Section 5, causing objects to become ambulatory , possibly due to poltergeists.

E12 It's Not Easy Being Green
unrated2009-07-31 · 44 min
Carter finds himself chasing down creation of blob-ical like proportions when a series of escalating pranks turn deadly. Elsewhere, long-term rivals from Area 51 come to Eureka for a bowling tournament.

E13 If You Build It...
unrated2009-08-07 · 44 min
Eureka's teenagers who appear to have been manipulated while asleep, gathered in a field where they assembled a strange structure comprised of scrap metal and electronics.

E14 Ship Happens
unrated2009-08-14 · 44 min
Henry's ship returns causing Carter to fear it maybe linked to the town's deadly electrical anomalies.

E15 Shower the People
unrated2009-08-21 · 44 min
Allison's baby shower fetches her a load of eco-friendly gifts and the discovery of a drowned scientist in a location where drowning is impossible.

E16 You Don't Know Jack
unrated2009-08-28 · 43 min
Global Dynamics sonic cleaning coincides with a phenomenon in which the citizens of Eureka develop a form of amnesia. Meanwhile, Allison goes into labor.

E17 Have an Ice Day
unrated2009-09-11 · 44 min
The first day on the job as temporary head of Global Dynamics proves daunting for Tess when a new Ice Age comes to Eureka; and a familiar face returns in the process.

E18 What Goes Around Comes Around
unrated2009-09-18 · 44 min
Tess has a job offer from Australia, Zoe is prepared to leave for Harvard and Carter has a magnetic disturbance above Eureka to contend with, in the third season finale.