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.
Clark is wracked with haunting visions when he meets an old woman, Cassandra Carpenter (Jackie Burroughs), who can see the future. Lex schemes to use Cassandra's gift to glimpse his own destiny and learn more about Clark's secret. Meanwhile, a bitter old man, Harry Bollston (George Murdock), discovers a "fountain of youth" and reverts to a teenager. He then seeks revenge on the descendants of jurors who put him in jail decades ago.
Clark and Lex team up to rescue members of Clark's high school class after a janitor, Earl Jenkins (Tony Todd), takes them hostage in LuthorCorp's Smallville Fertilizer Plant No. 3. Jenkins claims his deadly "jitters" were caused by a mysterious contaminant, and he threatens to kill everyone unless he is shown a secret sublevel -- which Lionel Luthor (recurring guest star John Glover) denies ever existed.
The secret is out - perhaps. Clark performs a lifesaving act of super heroism, thinking there are no witnesses. But a nearby cop sees everything, and he has blackmail in mind.
A religious sect member capable of changing gender becomes the prime suspect in a murder spree.
