Smallville - Season 3 Episode 18 -

Chloe visits a former friend of her father in Luthor Corp. to know if he is blacklisted, since all his applications are not accepted and he is not able to find a job. She steals his security card and breaks in the Luthor Corp. laboratory trying to find evidence. But she gets accidentally exposed to a meteor-rock gas which gives her the ability to makes people tell the truth whenever she gets in close contact with them, thus exposing their innermost secrets. Chloe uses her new ability to explore her curiosity of journalist, hurting people, including her history teacher...