Smallville: Season 5, Episode 8

5 - 8: Solitude

After Martha contracts a strange disease and is given hours to live, Clark turns to Professor Fine, who convinces Clark that Jor-El is the one responsible for her illness and the only way to save her is to destroy the Fortress of Solitude. However, once the two arrive at the Fortress, Professor Fine tries to free Zod and kill Clark...