: Fine is actually a malevolent artificial intelligence (Brainiac) created by Kryptonians, not a fellow survivor as he previously claimed.
The episode centers on a direct threat to the Kent family when is infected with a mysterious, life-threatening Kryptonian virus. Milton Fine (Professor Fine), played by James Marsters, uses this crisis to manipulate Clark into believing that his biological father, Jor-El , is the one responsible for the illness as a punishment for Clark's past disobedience. [S5E8] Solitude
The episode titled is a pivotal installment in the fifth season of Smallville (S5E8), often cited by fans for its high tension and major plot revelations regarding the show’s Kryptonian lore. Plot Summary: Deception in the Fortress : Fine is actually a malevolent artificial intelligence