A stray dog accidentally discovers the warehouse where Barkley and the other cats live. The curious dog finds the cats and chases after them for fun, but Barkley and the cats are frightened by the enthusiastic dog. The pursuit triggers a domino effect as the shelves and goods are knocked over one by one, turning the warehouse upside down. The cats are infuriated, causing the whimpering dog to crawl into a corner. But seeing the poor dog did this purely for fun, Barkley and the cats eventually embrace the surprised dog, who begins to wag its tail and happily play with them again.