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.

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…

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

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.

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…

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…

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…

The city of Atlantis becomes host to the minds of disembodied Replicators, led by someone very close to the team.

The town's annual dog show gets into full swing complete with exploding robotic canines. Meanwhile, Sheriff Carter experiences an isolated earthquake, Zoe contemplates quitting the accelerated physics program, and Allison…