Eureka: Season 3, Episode 6

3 - 6: Phased and Confused

A mysterious "superhero" who can walk through walls and fly is causing a ruckus in Eureka. Meanwhile, Zoe and her friends are trapped in a forgotten bunker that was built before World War II. Zoe slips and falls in a mysterious substance that has far-reaching consequences. Zoe, Zane, and her friends get trapped in the bunker, and the "superhero", who was just trying to impress Lexi, is found stuck in a wall; the device that allows him to walk through walls eventually makes you decoherent. Carter puts on the device and saves Zoe, Zane, and the others. Later Allison and Henry are able to make Carter become coherent.