Cat school

Welcome to kitten school! Just like children, kittens have a lot of useful knowledge and skills to learn. They don't yet know when it's a good idea to stick their claws out or miaow, how to catch a fish in the ornamental pond, or how to properly stalk a mouse. And where better to learn these skills than at kitten school?
The class of kittens is taught by a kind cat teacher who takes her pupils on adventurous expeditions. One day, however, their lessons are disrupted by a stray tomcat named Mourek. He has no family, doesn't wash, doesn't go to school, and on top of that, he's a real handful and a rascal. He constantly disturbs the kittens during their lessons, gets up to all sorts of mischief, and it seems he will never learn his lesson... Or will he?