A decayed tooth, a canker sore, an abscess!

Only one solution: Joe the toothbrush.

Intrepid hunter of cavities, mouth ulcers, bacteria, tartar, Joe fights on all fronts to save the teeth of all children.

His hidden hideout, unknown to everyone, is in the foot of a sink.

Inside, sitting on his dentist's chair, he scans the giant screen for the slightest pathogenic agent sent by the terrible Dr. Gum: the sworn enemy of our hero.