Smallville Season 6 Episode 21 Prototype ( Air Date 2007-05-10 ) Genre Sci-Fi & Fantasy, Action & Adventure, Drama category. Overview "Lex tries to turn a soldier that supposedly died in Afghanistan into a "super-soldier." A senator threatens to tell the world about Lex's labs, prompting Lex to send the "soldier" to kill the senator. Lois sees the attack and becomes the soldier's next victim.".
Smallville Season 6 Episode 21 Prototype
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- Watch: Smallville Season 6 Episode 21 Prototype on CWR-CRB
- Stars: Tom Welling, Erica Durance, Cassidy Freeman, Justin Hartley
- Director: Turi Meyer, Anne Cofell Saunders, Tom Welling, Tom Flores, Alfredo Septién, Christopher Petry, Cristina Verano, Tim Scanlan, Jae Marchant, Brian Peterson, Kelly Souders, James Marshall, Brian Robbins, Greg Beeman, Joe Davola, Michael Tollin, Jerry Siegel, Joe Shuster
