Mamá, Papá, Sister, and Brother Ratón go for a picnic on a beautiful day. After a delicious lunch of medianoches and lemonade, Mamá and Papá smooch—eeewww!—and Brother and Sister must find something to do. And what could be more fun than teasing the cat behind the fence? But the fence isn't as high as they think! Faster than they can say, "Adios, Gato!" Brother and Sister are racing back to Mamá and Papá with the cat in pursuit. The brave Ratón family knows what to do—hide behind Mamá! But what will Mamá do?