Dr. Two-Brains discovers WordGirl's secret identity and comes over to Becky's house to let her family know./Mr. Big finally cheats his way to becoming the town mayor and WordGirl and Captain Huggy Face are banned from the city.
Chuck the Evil Sandwich-Making Guy gains a sidekick called The Whammer, a supervillain who creates sonic waves by smashing his fists together./A super-fan named Glen Furlblam seems to be the replacement for Dr. Two-Brains while he goes on vacation.
The Butcher enlists an adorable kitten named Li'l Mittens as his ally to conquer WordGirl with cuteness./Mr. Big creates a new mind-control ray that makes everyone use complicated vocabulary words.
Tobey plots to steal a copy of the new Princess Triana book before it gets released./Granny May uses the heat wave as an opportunity to go on a crime spree using her air-conditioned jetpack/suit of armor.
Granny May sells phony bottles of youth-restoring spritzer; Dr. Two-Brains builds a mechanical mouse muscle suit, which he plans to use for robbing the annual 2-for-1 festival.
WordGirl has a contagious cold, but she must put a stop to Chuck's latest evil scheme before resting up./Becky and Violet visit an art gallery, only to find the notorious Butcher auctioning off rare and magnificent works of art.
Two-Brains invents a Shrinkinator. The problem is, shrinking objects is easy, but restoring them to their original size is much, much more difficult./Interrupting the Botsford family's shopping trip, Tobey tries to impress WordGirl with his giant robots.
Mr. Big is running for mayor. WordGirl must find out his evil plan before he wins the election and takes over./Becky enters a vocabulary bee only to be distracted by The Butcher. Todd "Scoops" Ming is growing suspicious of her.
WordGirl meets Eileen - a spoiled brat who enlarges herself when she doesn’t get her way by saying “mine”./Granny May answers an ad to be the Botsford's new babysitter - but she didn't plan on babysitting WordGirl!
Tobey fails to paint a masterpiece in art class, he orders one of his robots to destroy the city!/Chuck, freed from jail, tries to go straight by working in an office.
Becky is grounded by her dad for not cleaning her room and she sends Captain Huggy Face in WordGirl's place./Dr. Two-Brains has created an army of super-smart mice - but they've become so smart that they won’t obey their master!
