Smallville › Season 5

S5 E19: 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.

Air date	Apr 20, 2006
Runtime	43 minutes
TMDB rating	★ 8.7/10