Episode Title:Mouse Brain Take-Over - Leslie Makes It Big.Episode Description:Mouse Brain Take-Over: WordGirl learns that Dr. Two-Brains is on an all-out cheese rampage just as she's about to give a tour of her secret hideout to the winner of the WordGirl Synonym Contest.
Leslie Makes It Big: Mr. Big is arrested, leaving it to his assistant, Leslie, to carry out their latest evil plan: building the world's most powerful mind-control device.