Smallville :

A sympathetic doctor releases a half-human, half-machine subject named Victor Stone who was being held captive and experimented on by LuthorCorp. While making his escape, Victor is struck by Lana's car. After watching Victor walk away without a scratch, Lana calls Clark to investigate.

Clark befriends Victor and promises to help him find his girlfriend, but Lex traps Victor and takes him back to LuthorCorp. Clark helps Victor free himself for good. Meanwhile, Martha is being blackmailed, and Lionel offers to step in and deal with the blackmailer. It is revealed the Lionel knows Clark's secret.