In 2022 kids aspire to become 'medafighters', the owners of special robots which they battle in contests. The hero of the series is Ikki, who finds a rare, stolen Beetle medallion and uses it to power a ramshackle, second-hand robot, creating - Metabee. However Metabee exhibits an obnoxious personality of his own: he refuses to obey Ikki and insults him. Student journalist and put-down artist Arika and the mean Samantha and her gang, the Screws, complete the cast.