A pair of broken water faucets at Cerise Lab prompts Professor Cerise to call Plusle and Minun All Service for help. Two workers, Devi and Multa, arrive. And they’re not simply plumbers—they fix all sorts of things and even care for Pokémon, too! But... (more) when Devi takes a hard fall, Multa has to temporarily take over the business, setting her in a panic. Of course, Ash and Goh want to help her out! Call after call comes in for their expertise, and even Team Rocket helps out in the end. Along the way, Multa gains confidence, and both Plusle and Minun end up cheering her on!