Mulder and Scully question an isolated sect of people while searching for an androgynous killer who finds victims in singles bars.
Mulder and his new partner discover a secret U.S. Marine Corps experiment conducted during the Vietnam War.
Clark is staggered by his newfound X-ray vision, especially when he sees Lex commit a bank robbery; a shape-shifting teen threatens Lana.
An old woman grants Clark a glimpse of his future, while Lex takes advantage of the seer's gift to learn more about Clark's secret; a bitter old man finds a fountain of youth.
An inmate's final vow prompts the agents to investigate a mysterious death which occurred after the man's execution.
