Watch Smallville Checkmate Season 9 Episode 16 Stream Online. Unveiling ones secret identity really is a big thing especially to the person involved. If you are a member of it, you will do things to stop revealing that secret. These things are all in the new episode of the Smallville Checkmate Season 9 Episode 16. In this episode, After a woman tries to unveil the identities of the Justice League, Oliver is kidnapped. The Smallville Checkmate S09E16 airs this Friday, April 09, 2010 8:00 PM-9:00 PM EST on The CW. Its going to be a great and interesting episode. So Watch Smallville Checkmate Season 9 Episode 16 Stream Online.