Dr. Dinkle turns into water, then Petey accidentally destroys the invention, meaning that Dr. Dinkle is made out of water permanently, but Dr. Dinkle thinks that he actually likes being made out of water when he is able to turn into a puddle and sneak into the vault to get the money. Back at his home, Dr. Dinkle finds out he will never pay the water bill, but his supply is cut off after two weeks. Petey complains he needs water for drinking, but Dr. Dinkle goes to sleep and Petey drinks him in revenge. The next morning, Dr. Dinkle yells in surprise to be let out, right when Petey needs to urinate and the cat leaps into his litter box. Dr. Dinkle discovers that he is now made out of urine as Petey coins the name "Rip Van Tinkle", much to his dismay, and makes jokes at his expense, making him go to multiple places, all of which kick him out for smelling horrible. The following night, Rip Van Tinkle puts Petey in the Robo Kitty 3000, before he evaporates and rains pee on people. Soon the pee drops break into houses to steal toilets for the Robo Kitty 3000 to destroy. One drop gets caught by Billy, so it tricks him into thinking that it will repair the toilet, gives him a juice box in bed, then the Kitty destroys the toilet. The next day, Mr. and Mrs. Hoskins are in pain, but put on diapers, while the mayor decides to drain the pool. The pee drops unite to create Rip Van Tinkle, while Petey steals diapers to sell to the people who were robbed of toilets, but Rip Van Tinkle takes Petey's money and the cat soaks him up with toilet paper. Super Diaper Baby and Diaper Dog arrive, only for Petey to evolve the Robo Kitty 3000 into the Supa-Mecha Kitty 3000. Super Diaper Baby flies to buy catnip and pour it inside the control seat. Petey goes crazy after having the slightest sniff of the catnip, bounces around, and detaches the Supa - Mecha Kitty 3000's head. Super Diaper Baby and Diaper Dog grab Petey and carry him off to jail. A drop of pee gets flicked up and lands in the Mayor's pool, where it grows into an enlarged Rip Van Tinkle, whom the duo finds wreaking havoc at the train tracks. Rip Van