Watch " " Online Free HD Soap2day. In a marvelously animated version of one of the most beloved of all Dr. Seuss tales, two youngsters find themselves at home with nothing to do on a rainy afternoon. But when the magical, mischievous Cat in the Hat arrives on the scene, they're all cat-apulted into a day of rousing, romping, outlandish antics they - and you - will never forget!