There's a new super hero in town and WordGirl is excited for Miss Power to teach her everything she knows! But Miss Power has a secret weapon using mean words against others. Is she really a super villain? WordGirl tries using her words harshly and feels empowered, but once Miss Power takes things too far, she doesn't like being associated with such a mean person. When WordGirl tries to stand up to Miss Power, she is belittled and stripped of her super hero star. When Becky returns home, Miss Power is there to take Mrs. Botsford away! Will WordGirl be able to save her mom and defeat Miss Power without sinking to her level? She will if Huggy has anything to say about it! He shows WordGirl a book full of secret battle moves from her home planet Lexicon. Will it be enough to save the city from Miss Power?