Smallville › Season 4 › Episode 17

Smallville Season 4 Episode 17“Onyx”

The CW · S4E17 · Aired April 13, 2005 · 60 min · ★ 7.5/10

A kryptonite-based explosion at the Luthorcorp lab creates an evil clone of Lex, and the sinister twin tries to prevent the process from being reversed by taking drastic measures, which include imprisoning Lex in the basement of his own mansion.

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Smallville season 4 episodes

Crusade Sep 22, 2004
Gone Sep 29, 2004
Facade Oct 6, 2004
Devoted Oct 13, 2004
Run Oct 20, 2004
Transference Oct 27, 2004
Jinx Nov 3, 2004
Spell Nov 10, 2004
Bound Nov 17, 2004
Scare Dec 1, 2004
Unsafe Jan 26, 2005
Pariah Feb 2, 2005
Recruit Feb 9, 2005
Krypto Feb 16, 2005
Sacred Feb 23, 2005
Lucy Mar 2, 2005
Onyx Apr 13, 2005
Spirit Apr 20, 2005
Blank Apr 27, 2005
Ageless May 4, 2005
Forever May 11, 2005
Commencement May 18, 2005