当小猫Binou不小心弄脏了他最喜欢的小狗Mr. Mou时，老鼠Toupie (Marc labr che饰)叫住在神灯里的奶牛dorothaceme (Anne Dorval饰)去除污渍。然而，由于一个误会，整个小狗都不见了。因此，托比、比诺和多萝西必须去失物世界寻找珍贵的毛绒动物。在这次不可思议的冒险中，三人遇到了两个海鸥双胞胎，雅克-亨利(泽维尔·多兰饰)和让-雅克(斯特文森·卢梭饰)，他们正在寻找他们的父亲，以及mare Magnifique公主(genevi Schmidt饰)，她的舞伴失踪了。 When the kitten Binou accidentally soils his favorite doggie, Mr. Mou, the mouse Toupie (Marc Labrèche) calls on Dorothée (Anne Dorval), a cow living in a magic lamp, to get rid of the stain. However, because of a misunderstanding, it is the whole doggie that disappears. Toopy, Binoo and Dorothy must therefore go to the World of Lost Objects to find the precious stuffed animal. During this incredible adventure, the trio meet two gull twins, Jacques-Henri (Xavier Dolan) and Jean-Jacques (Stéphane Rousseau), who are looking for their dad, as well as the mare Magnifique Princesse (Geneviève Schmidt), whose dance partner has disappeared.
