A cat turns up at the school and The Inseparables decide to take care of her after the search for her owner comes to a dead end. Taking care of a pet involves a lot of work, but the group is willing to do whatever it takes for the little kitty. All of them getting involved to organize and participate in throwing a fund-raising party at school for their new cat friend, are good examples of that. The boys and girls in the gang have bonded with their new pet because of all the fun experiences they have shared, until one day her owner shows up: What will happen to the cat? How will The Inseparables feel?