With the Clow Cards loose in the world, Sakura has to be ready for any problem, no matter how big or how small. This time, she has a really big one the Big Card is making things, well, big. Like the cat who is now three stories tall, for starters. Just when Sakura manages to put the cat out for the night, a dragon appears in the sky. Is this another product of the Big Card? Or is there another card causing trouble? Sakura will have to find out and fast!