Onyx Smallville : Season 4 Episode 17
TV-PG The CW 1h 00m
Aired: April 13th, 2005 @ 8:00 PM EST on The CW
A black kryptonite explosion splits Lex in two and his evil side - Alexander - is released. Alexander imprisons Lex in the mansion then gives full vent to his evil side - he threatens to evict Lana from the Talon unless she becomes his mate, jousts with Lionel, and tries to kill Clark and Chloe when they figure out his secret.
