Parisian teens Marinette Dupain-Cheng (aka Ladybug) and Adrien Agreste (aka Cat Noir) are classmates in school and partners in superheroing, although neither of them know the other’s secret identity. One of their friends, Alix Kubdel (aka Timebreaker), can travel through time when she rollerblades at just the right speed, although when she does so, she also becomes evilized (aka akumatized) courtesy of the series bad guy (aka Hawk Moth).