Arthur and Brain confront a new crossing guard who charges $10 every time someone crosses the street and threatens to send his "goons" after them. They think of ways to avoid him, until they learn that he is a friend of Grandma Thora's and that he was just teasing them, after overhearing how Arthur constantly teases D.W. the same way. D.W. has been very upset and angry for several days straight. Francine and Arthur spy on D.W. and discover that she is upset over not being invited to a classmate's birthday party. Francine tries to tell D.W. that she cannot have everything that she wants, but when D.W still has not changed her attitude, Francine consoles her by inviting D.W. to her birthday party.