Ben 10 vs. Negative 10 (2) Ben 10 : Season 4 Episode 12
TV-Y7-FV Cartoon Network 22m int(0)
Aired: March 9th, 2008 @ 10:00 AM EST on Cartoon Network
The Forever King sets his plan in motion and recruits the most powerful enemies Ben has ever faced in order to steal the world's most powerful energy source.