Teyla goes in disguise as a Wraith queen when Todd agrees to make a bold proposal to the leader of his alliance — not realizing that he has other intentions.

A mysterious « superhero » who can walk through walls is causing a ruckus in Eureka. Meanwhile, Zoe and her friends become stranded with Zane Donovan in an abandoned subterranean facility.

When all the passengers on a plane die, FBI agent Olivia Dunham investigates the events and her partner almost dies. A desperate Olivia looks for help from Dr. Walter Bishop who has been institutionalized. Olivia, Dr. Bishop and his son Peter begin to discover what really happened on Flight 627 and begin to uncover a larger truth.

Michael attempts to track the cardholder and avoid going back to prison.
Wyatt finds new information regarding Sara’s whereabouts.
T-Bag uses a new identity to make a new life for himself.

Sheppard and Beckett join a team investigating a hidden Wraith laboratory where Michael has been conducting genetic experiments.

Michael, Lincoln and the others get a new team member, Roland, and work to copy the data card. Wyatt continues his quest to find the brothers. T-Bag makes his way north.

Michael has trailed Gretchen/Susan, Whistler and Mahone to L.A. Chaos reigns in SONA while T-Bag, Bellick and Sucre go missing. Lincoln and L.J. continue to stay with Sofia.

When an Egyptian tomb is opened at Global Dynamics, strange things start to happen, leading Fargo to believe it is the mummy’s curse. The mummy, however, has disappeared, and Carter investigates.

Rodney McKay is stricken with a mental affliction that robs him of his knowledge and memories, causing him to revert to a childlike state.

On Allison and Stark’s wedding day, Sheriff Carter finds himself stuck in a time loop, causing him to experience the same lousy day over and over again. Meanwhile, Sheriff Carter’s sister, Lexi visits Eureka.