It's Jolly Olde England and Rancid Rabbit is king. Meanwhile, CatDog are living the life of lowly garbage pickers. Cat and Dog both fall in love with Loraine Dejardin, who likes opera and playing fetch.
Dunglap hires Dog to eat his homework so he can truthfully use the excuse, "My Dog Ate My Homework." While looking through Winslow's telescope, CatDog become convinced that a big, black cloud is foretelling the rain to end all rains.
Tired of being bullied by the Greasers, CatDog, Eddie the Squirrel, Dunglap and Mervis form their own gang -- the Geekers.Dog finds The Golden Hydrant, a mythical talisman that will bring eternal good luck to whatever dog pees on it.
Winslow stumbles upon the Greasers on a street corner singing Doo-Wop harmony. CatDog's new neighbor, the yellow-tailed whipporwhill Lola Caricola has to make a documentary about CatDog to satisfy her angry financier, Mr. Bottomleiner.
Dog is excited because today is Kooky Prank Day, Nearburg's version of April Fool's Day.CatDog prepare to go back to their old school reunion, where Cat wants to rekindle his romance with Sally Chenille.