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.
Season 5 Episode 19 of Smallville resulted in a 0.00 rating in the 18-49 demographic.
s05e01 - Arrival
s05e02 - Mortal
s05e03 - Hidden
s05e04 - Aqua
s05e05 - Thirst
s05e06 - Exposed
s05e07 - Splinter
s05e08 - Solitude
s05e09 - Lexmas
s05e10 - Fanatic
s05e11 - Lockdown
s05e12 - Reckoning
s05e13 - Vengeance
s05e14 - Tomb
s05e15 - Cyborg
s05e16 - Hypnotic
s05e17 - Void
s05e18 - Fragile
s05e19 - Mercy
s05e20 - Fade
s05e21 - Oracle
s05e22 - Vessel
Smallville tells the tale of a teenage Clark Kent in the days before he was Superman. It is the town where he came from where very strange things started happening with his arrival in a spaceship in the midst of a meteor storm of green rocks.
Clark must deal with a variety of individuals given powers by the green rocks, keep his powers a secret, cope with his friendship with a young Lex Luthor, and balance the two girls in his life, Chloe and Lana. The show also shows us how Lex Luthor develops from a friend of Clark's and kinda-okay guy to (presumably) the villain who will plague Superman in his later years.