George is very surprised to find Hundley bouncing, running and playing all around the apartment building. And when this "new fun" Hundley makes a total mess of his beloved lobby, George knows that all is not what it seems. But how can he prove it? Deciding a collection of signs would make a cool display for his room, George sets out to gather them from all around town. But when people start losing their way, George realizes how important signs are and starts putting them back - but not quite in their proper places.