In a whimsical action-packed adventure, the newly appointed mayor of Futaba Town in Kasukabe-City, Saitama Prefecture, Mamoru Shizan, champions ecological efforts. Little do people know, he harbors a secret as the mastermind behind an eco-terrorist group called 'SKBE: Save Keeping Beautiful Earth.' His nefarious scheme involves a potion that morphs humans into animals. When Shinnosuke's father, Hiroshi, unwittingly sips this elixir and turns into a chicken, and his mother transforms into a panther, chaos ensues. Teaming up with a mysterious woman named Victoria, the Nohara Family and the partially animalized Kasukabe Defense Forces must thwart Shizen's outlandish plan and restore order.