Wormholes randomly materialize around Eureka as the Department of Defense is set to shut the town.

Beverly Barlowe resurfaces in Eureka seeking Carter’s help to free the Astraeus crew, and the rescue plan lands Carter in the crew’s virtual world.

The town huddles in a last attempt to locate the vanished Astraeus before it’s too late!

The Astraeus crew returns to Eureka four years later and must adapt to a myriad of changes, including a more oppressive version of Deputy Andy.

Nathan Stark and Jack Carter must put aside their rivalry to stop a deadly bacteria from destroying the town and killing Allison’s son. But can Carter ignore Stark’s crimes, as…

Beverly Barlow returns to town just as a parasitic bacterium threatens to destroy Eureka, by turning everything to gold and then into rust — people included.

Dr. Whiticus creates an incredible “weather machine” intended to reverse the effects of global warming which instead stirs unexpected results.

Fargo accidentally triggers a prototype for a personal force field, which goes out of control, forcing Carter to enlist Stark’s help.

Taggart’s theory is that solar flares caused by the eclipse, or the ‘Phoenix Effect’, are to blame when people start to spontaneously combust. When Carter discovers that a blast of…

When Grant and Carter become stranded, they must race back in time to save Eureka.

Eureka’s citizens face the return of people from the past; Global Dynamics tests a new device.

Love is in the air as Carter gets fed up with Grant’s pursuit of Allison, Zoe conceals her love and Henry courts Grace. But all the emotions may have to…

Speedle and Delko are present when a trendy nightclub catches fire, apparently from a DJ’s pyrotechnics display, killing sixteen people and injuring dozens of others. But the ensuing investigation reveals…