A series of unexpected deaths, in which the victims spontaneously catch fire, has the occupants of Eureka thinking about all manner of freakish theories including Taggart's theory that solar flares caused by the eclipse, or the 'Phoenix Effect, ' is to blame. As Carter brings out that a eruption of radiation from the artifact had got through the wall of the chamber and is to blame for the spontaneous combustion, it turns out to be a a race against time to save the other two people discovered - Nathan and Kevin.

A device, recognized as a M. A. C. A. A. vanishes from a storage vault in Global Dynamics following the commencement of Global computer system's eight-hour reboot. Somebody plants the device in Fargo's jacket, who then triggers it, creating an amplifying force field that can't be turned off. Carter must squad up with Stark to find a direction to save Fargo before Allison is constrained to authorize his death to annul the force field violating containment.

An Intelligent scientist, Dr. Stephen Whiticus, produces a weather machine destined to override the consequences of Global Warming which creates an isolated deep-freeze that brings out a chain reaction of freak climate alterations that soon become a decisive threat to Eureka. To make affairs worse for Carter, his ex-wife, Dr. Abby Carter, hits the town for Zoe's 16th birthday, and she has some fascinating news for her girl.

After encountering a hit to the head, Carter finds that he is in a parallel Eureka. He keys that the residents of the parallel Eureka are disappearancing. Carter must solve that he is in reality lying in bed on the brink of death whilst the Eurekans try to figure out just what is wrong with him. Carter chooses to stay with Zoe but Abby suggests a more suited alternative.

Falling space rubble endangers Eureka residents and Carter calls on to high school science fair participants to solve the trouble. Specifically, he intercepts a student science project created to rein in the sun's energy turning the EM field surrounding GD into a massive magnet Also, Zoe acquires an eco-friendly automobile.

A Deadly spill appears to drive Eureka's occupants to share their dreamings. At the start the state of affairs is amusing, but becomes dreaded after the dream sharing is disclosed to have a deadly dimension. The position becomes more complicated, when Carter catches out that the run out is not the cause.

Fargo's grandfather is awakened from a 50-year sleep with no retention of how he was cryogenically put to sleep and incriminates his rival of framing him there and thieving his work. When Pierre rapidly elds from the 30-year-old he came out as, it turns a race against time to lay claim and credit for his work, and to recover his lost love.

An experimentation about the big bang hypothesis appears to be the cause for Eureka's finest to become dumber and dumber, including everybody involved within the experiment. As it comes to the brink of destructing Global Dynamics, the destiny of the town lies in the hands of Jack Carter and the squad of scientists he foregathers, amidst them the latest member of the town, an asocial genius.

Carter pulls a disappearing act after unknowingly entangling himself in an deserted research project concentrated on making things invisible. The same abandoned project on invisibility comebacks to haunt Eureka. Carter and Zo become involved in a network of odd occurrences which lead to Carters disappearance and the theory that he may never reappear again.

Zoe and her friends lose their voices, but whatever is causing the symptoms has an even worse effect on Allison and her only hope comes from an unusual source. Muteness, human bioluminescence and water turning to blood drive a lot of of Eureka's citizens to think that they are the victims of a scriptural biblical plague.

Eureka's air-conditioning system builds up a defect, inducing sexually tense states of affairs, when the female occupants all of a sudden become attracted to Carter due to bacterium leakout. When the town's air conditioning system is working again, the bacteria begins being pumped up into the air, which could cause all men to become irresistible.

All metal in starts turning to gold, much to the joy of the town's residents. The town along with its residents cryptically start to deconstruct. The prime suspect is an artist who could not get along with Stark when he was doing work at Global Dynamics. An unusual twist between Stark and Beverly becomes a immense threat towards the town.

Season 2 closes with Carter and Stark blending efforts to save Allison's son Kevin and foil the spread of an fast-growing virus. Nathan Stark and Jack Carter must put away their rivalry to arrest a deadly bacteria from ruining the town and killing Allison's son. Carter is stuck whether to ignore Stark's crimes too!