What is the book Warrior cats about?

People were saying they were superhero cats ,but they are not.This is a book about cats who defend their territory and be loyal to their clans.There is Starclan (warrior ancestors),Shadowclan,Riverclan,Thunderclan,Windclan,but there are also other clans later on in the book. I read them, too. I think they are interesting! Enjoy!