Ryder entrusts the care of Adventure Bay to Robo-Dog while he and the Pups take a well-deserved break. But Robo-Dog goes on a fixing rampage that ends with him souping up the Flounder until it careens around the Bay like a jet. Ryder and the Pups have to cut their vacation short to bring the Flounder home and save Robo-Dog from the watery depths of Adventure Bay.