Clark is exposed to silver kryptonite, causing him to have paranoid delusions. The element makes him believe that Chloe is going to reveal his secret; Jonathan is scheming against ...more

After Martha contracts a strange disease and is given hours to live, Clark asks Professor Fine (recurring guest star JAMES MARSTERS) for help. The professor convinces Clark that ...more

Clark decides to tell Lana his secret so they can finally be together. Meanwhile, a rogue FBI agent kidnaps and tortures Pete to force him to reveal Clark's secret. Lex panics ...more

Lex is given an envelope with damaging information that could destroy Jonathan's life and must decide whether or not he will use it, as it would also bring harm to Clark and Martha...more