The Cat Gang is a group of precocious British kids. They have a habit of hanging around a grown-up customs official who wishes that they'd beat it. But the Gang comes in handy when a smuggling gang arrives on the scene.
Nobleman Rainiero, Sidonia's duke son, comes back home with his friend Renzo. Soon after arrival, Renzo will get in a big trouble and he will be forced to choose between going to church for marriage or going to prison.