Emilia is an average child from the suburbs, attending school and living with her mother, and occasionally her father. Her life is quite typical until her pet hamster unexpectedly bites her finger, granting her a hidden superpower. This newfound ability allows her to transform into Super Furball, a hero capable of flying and tackling challenges with her extraordinary skills. Meanwhile, the herrings in a nearby bay of the Baltic Sea are in distress due to contaminated water. As Super Furball, Emilia decides to address this environmental crisis, discovering newfound bravery that also impacts her everyday life.