Philip runs into Jeanne, a new girl in the neighborhood, who defeats him at every game they play. Philip enlists his best pal Emery to help him, but even when they join forces, they lose to Jeanne. In his frustration, Philip foolishly assures Jeanne that he will win the poster contest being run at the mall. She laughs off his challenge, certain first prize will be hers. Philip cannot allow himself to lose again to this girl, but how in the world will he ever defeat The Girl Who Couldn't Lose?