A thought-provoking tale about segregation and forbidden friendship. Cats and dogs do not mix in the big city of Up. They do not talk to each other, and they do not play with each other. Cats and dogs are just too different. But Mia and Max have other ideas and break the rules to become friends. Until the day they are caught. After being banned from seeing each other, they decide to leave the city that separated them. A terrible storm comes, and Mia and Max become trapped. Will anyone hear their cries?