Episode Title:The Yuck Factor.Episode Description:Noting that Jerry is acting strangely, the spies discover that an evil scientist named Dr. V has taken over Jerry's brain. Dr. V is microscopic in size, so the girls get into a vehicle and shrink themselves to micro-size to search for the doctor inside Jerry's body before he uses Jerry to take over WOOHP and the world. In the subplot, Alex tries to evade having to dissect a live frog.