Smallville Season 5 Episode 19 – Mercy – Lionel is taken hostage by a masked man who forces him to play elaborate games for the prize of staying alive. Martha goes to confront Lionel after Clark tells her Lionel knows his secret and becomes a part of the game herself, fighting for her life. – Stream Smallville Season 5 Episode 19 Online for Free – Watch Smallville Season 5 Full Episode 19 Free – OnionPlay Official