Clark reels from his first flashes of X-ray vision. His shock is compounded when he witnesses a bank robbery, apparently by his friend, Lex. Unsure of how to control this new power, Clark nonetheless puts it to use when a Smallville teen who has developed shape-shifting abilities threatens Lana.
Mulder and Scully question an isolated sect of people while searching for an androgynous killer who finds victims in singles bars.
An inmate's final vow prompts the agents to investigate a mysterious death which occurred after the man's execution.
While researching unsolved killings in which the victims' organs were removed, Mulder uncovers a species-altering experiment that may be traced back to his own father.
A mysterious woman, Rachel Dunlevy (BLAIR BROWN - "The Days and Nights of Molly Dodd"), visits the Kents and claims to be Clark's mother, prompting them to finally tell Clark what happened after they discovered him in the cornfield that fateful day. Clark learns why his father hates the Luthors, how his adoption was arranged--and who else has rescued Lex from death.