The Yuck Factor Totally Spies! : Season 2 Episode 4
TV-Y7 Gulli 22m
Aired: August 15th, 2003 @ 11:30 AM EST on Gulli
Noting that their boss is acting strangely, the spies discover that an evil scientist named Dr. V has taken over Jerry's brain. They end up being shrunk to micro size and put into Jerry in a micro-sub, as in the film ""Fantastic Voyage"".
