Salvation Smallville : Season 9 Episode 21
TV-PG The CW 1h 00m
Aired: May 14th, 2010 @ 8:00 PM EST on The CW
When Zod and the Kandorians launch their brutal attack on Earth, Chloe calls in some old friends to join the fight against the aliens. Clark and Zod face off in an epic battle for the control of Earth.
