Sue, 12 ans, est un loup solitaire. Grâce à une potion inventée par sa mère, elle est soudainement capable de devenir invisible. Mais quand sa maman sera kidnappée, Sue aura besoin de l'aide de ses nouveaux amis, Tobi et App, pour sauver sa mère et traquer les criminels.... 12-year-old Sue is a lone wolf. Due to a potion invented by her mother, she is suddenly able to become invisible. But when mum is kidnapped, Sue will need the help of her new friends Tobi and App to rescue her mother and hunt down the criminals.