Dr. Two-Brains creates an army of super-intelligent lab mice by increasing their intelligence with a Smart Ray. But when the mice become too smart, they become uncontrollable and form a stampede. When Dr. Two-Brains finds that he is unable to control them and stop them from taking over the city, WordGirl offers to help him. But can she depend on the villainous Dr. Two-Brains? Vocabulary Words: Depend Stampede