Akira Toriyama's series continues.

A school ball is being held, and the superhero Cleangod has been invited. Hedo happens to be a big fan of his and attends the party, where Krillin and Mai identify him and send him on the run. During the chase, they learn that Hedo is the grandson of the legendary Dr. Gero, and that the resurgent Red Ribbon Army wants to recruit him!