The grand cat adventure continues! In the neighborhood of the twin cats Othello and Giovanni, a beautiful cat moves in. Othello and his feline friend Karlchen are smitten with the award-winning Moni, who is set to participate in a cat show at the vacant, once magnificent department store in town. However, Lavinia Lifting, the nasty host of the show, and her husband Mark Mörtel are plotting something sinister, as there is something hidden in the vault of the old department store that they desperately want...