Emilia is an ordinary 11-year-old girl who is bitten by her pet guinea pig and gains the power to transform into Super Furball, a fluffy superhero who protects animals. Alongside her genius friend Simo, she must confront the school bully Greasy-Antero and his sidekick Pietari. But when the source of her powers falls into the wrong hands, the fate of the forest is at stake.