Kyle, Declan and Foss plot to retrieve Kyle’s Latnok ring. Meanwhile, Lori begins to question Stephen’s time at Madacorp.

Richard returns from hiding to abduct Isabelle from Promise City, hoping to « start over. »

Meanwhile, Tess, her schizophrenia out of control, uses her ability to take control of a diner full of people.

Janet plots revenge when she learns what Tommy did with the baby; Franco questions his marriage proposal to Natalie in light of Alicia and Keela’s return; and Tommy faces his ghosts.

Janet plots revenge when she learns what Tommy did with the baby; Franco questions his marriage proposal to Natalie in light of Alicia and Keela’s return; and Tommy faces his ghosts.

Space debris threatens Eureka’s existence after it accumulates into a large cloud. Carter investigates in an effort to avert potential disaster.

Lori, Kyle, Jessi, Declan and Amanda stumble upon the ruins of Zzyzx while on a camping trip in the woods. Andy shares a life-changing secret with Josh.

P.J. took the Promicin shot 2 months ago. Now he has an ability…

A devastating fire has a profound effect on the crew; Tommy wrestles with his feelings about the baby; Alicia (Susan Sarandon) returns with a proposition for Franco; Troy breaks up with Sheila while Lou makes a tough decision about Theresa; and Sean apologizes to Mike about the fire he set that burned down Mike’s mother’s house.

A devastating fire has a profound effect on the crew; Tommy wrestles with his feelings about the baby; Alicia (Susan Sarandon) returns with a proposition for Franco; Troy breaks up with Sheila while Lou makes a tough decision about Theresa; and Sean apologizes to Mike about the fire he set that burned down Mike’s mother’s house.

After receiving a hit to the head, Carter finds that he is in a parallel Eureka. He discovers that the residents of the parallel Eureka are disappearing.