When Koko sees the pretty design that Lori has painted on Zephie's face, she decides she wants one too and the two of them compete to see who can get the biggest and best design. Lori's too busy repainting rolling stock in the automated spray shed to help, so Koko and Zephie decide to paint each other using the paint car. Koko paints Zephie with spiders and Zephie gives Koko a beard and moustache! They laugh when they realise they've played a trick on each other - but the laughing stops when they discover the paint is permanent! They rush to the spray shed and help each return to their original colours and decide they don't need a new look after all. They're fine just as they are!