Smallville Season 9 Episode 21 (Smallville s09e21) with title “Salvation” airs on Friday, May 14th 2010. In this 21st episode, you can watch Chloe and also Oliver attempt to reconnect Watchtower’s satellite system in order to fight the Kandorians but to Chloe’s horror, Oliver gets caught on site and disappears. Meanwhile, Tess attempts to stop Zod but he leaves her clinging to life. Clark and Zod battle for control of Earth. Okay reader, don’t miss to watch this great episode on your TV network and don’t forget that Smallville Season 9 Episode 21 airs on The CW Network at 08:00 pm. Anyway, if you can’t watch this episode on your TV, watch on internet (online streaming) is an another great way to watch this episode and you can watch this episode from 3rd party sites for free.