Trevor The X Files : Season 6 Episode 17
TV-14 FOX 45m int(0)
Aired: April 11th, 1999 @ 8:00 PM EST on FOX
After a tornado rips through a prison camp, one of the inmates disappears from solitary confinement and the prison warden is killed. As Mulder and Scully track him, he appears to have the power to pass through solid matter while changing its composition.