Tess’ reign as head of Global Dynamics may be shorter than planned after she receives an offer from Australia, the town deals with a magnetic disturbance and Jack must come to terms with Zoe leaving for college.
The uneventful first day that Tess plans as the interim head of Global Dynamics is shattered by Taggart’s reappearance and plunging temperatures caused by an ice core from the Arctic.
Tess begins a time capsule project for the town on the same day as Global Dynamic’s annual sonic cleaning. Unfortunately, Fargo’s attempt to erase history leaves some with a form of amnesia, and two people trapped in Section 5 with very little...
Allison’s baby shower yields eco-friendly gifts and the discovery of drowned scientists in an area where drowning is impossible. Billy Campbell.
Henry’s ship returns, and Carter thinks it may be linked to the town’s deadly electrical anomalies.
A strange structure comprised of electronics and scrap metal is assembled in a field by Eureka’s teenagers, who appear to have been manipulated while they were sleeping.
Long-term rivals from Area 51 visit Eureka for a bowling tournament; Carter probes an escalating series of pranks.
Objects become ambulatory after Dr. Tess Fontana (Jamie Ray Newman) reopens Section Five, which may be the work of poltergeists.
Carter takes a grueling recertification exam that tests him physically and psychologically; Allison pitches a town-wide DNA-monitoring security system to Henry that injures Deputy Lupo during the inaugural scan.
In the midst of Carter’s redaction, a unique problem arises and Carter can’t help getting involved.
A doomsday weapon built in the abandoned military complex is discovered, as is the secret Thorne wants to stay hidden.
It’s Election Day in Eureka, but voting is the least of the town’s concerns when an artificial sun threatens to go supernova.
A mysterious “superhero” who can walk through walls and fly is causing a ruckus in Eureka.