世间万物各有大小。仰望浩瀚星空，地球不过是沧海一粟；对于虫蚁，人类又如同巨人，遮天蔽日。宇宙是如何决定一切事物的大小的？万物的大小是否重要？本片带着这些问题…

　　An orphan boy in search of his origin. A young princess held prisoner in deadly Dragon City. Jim and his friend Luke …