Milo is a boy who is bored with life. One day he comes home to find a toll booth in his room. Having nothing better to do, he gets in his toy car and drives through - only to emerge in a world full of adventure.
With the help of a smooth talking tomcat, a family of Parisian felines set to inherit a fortune from their owner try to make it back home after a jealous butler kidnaps them and leaves them in the country.